Exercise 15.1 Question 1 A Which of the following have ‘equally likely’ outcomes? Explain. (i) A player calls for a head in a toss of a coin. The coin shows up either heads or tails. (ii) Mr Sharma has one child. The child is either a boy or a girl. (iii) An attempt was made …
KC Sinha Mathematics Solution Class 10 Chapter 15 Probability Exercise 15.1 Read More »
Exercise 14.4 Question 1 The radii of the ends of a frustum of a cone 45 cm high are 28cm and 7cm. Find its volume, the curved surface area. [Take π=22/7] Sol : Frustum = difference of two right circular cones OAB and OCD Let the height of the cone OAB be h1 and its slant …
KC Sinha Mathematics Solution Class 10 Chapter 14 Surface Area and Volumes Exercise 14.4 Read More »
Exercise 14.3 Question 1 Two cylindrical vessels are filled with oil. The radius of one vessel is 15 cm and its height is 25 cm. The radius and height of the other vessel are 10cm and 18 cm respectively. Find the radius of a cylindrical vessel 30 cm in height, which will just contain the …
KC Sinha Mathematics Solution Class 10 Chapter 14 Surface Area and Volumes Exercise 14.3 Read More »
Exercise 14.2 Question 1 A toy is in the form a cone mounted on a hemisphere of diameter 7 cm. The total height of the toy is 14.5 cm. Find the volume of the toy. Sol : Given: Diameter of a hemisphere = 7cm So, Height of the cone, h = 143-.5 – 3.5 = …
KC Sinha Mathematics Solution Class 10 Chapter 14 Surface Area and Volumes Exercise 14.2 Read More »
Exercise 14.1 Question 1 Three cubes each of side 5 cm are joined end to end to form a cuboid. Find the surface area of the resulting cuboid. Sol : Length of each side of cube = 5cm According to question, Three cubes are joined end to end to form a cuboid So, …
KC Sinha Mathematics Solution Class 10 Chapter 14 Surface Area and Volumes Exercise 14.1 Read More »
Exercise 13.1 Question 1 The circumference of a circle exceeds its diameter by 16.8 cm. Find the circumference of the circle. Sol : We know that, circumference of a circle, C = 2πr and diameter, D = 2r According to the question, C = D + 16.8 ⇒ 2πr = 2r + 16.8 ⇒ 2πr – 2r …
KC Sinha Mathematics Solution Class 10 Chapter 13 Area related to Circles Exercise 13.1 Read More »
Exercise 12.1 Question 1 Divide a line segment 4.2 cm long internally in the ratio 5:3 Also, write the steps of construction. Sol : Step1: Draw a line segment AB of length 4.2 cm Step2: Draw a line AC at any angle below AB Step3: take any distance in compass and keep the needle of …
KC Sinha Mathematics Solution Class 10 Chapter 12 Constructions Exercise 12.1 Read More »
Exercise 11.2 Question 1 From a point P, the length of the tangent to a circle is 15 cm, and the distance of P from the centre of the circle is 17cm. Then what is the radius of the circle? Sol : Let the centre of circle be O so that PO = 17 cm …
KC Sinha Mathematics Solution Class 10 Chapter 11 Circles Exercise 11.2 Read More »
Exercise 11.1 Question 1 The length of a tangent from a point A at a distance 5cm from the centre of a circle is 4cm. Find the radius of the circle. Sol : Let the centre of circle be O so that AO = 5 cm Tangent is AB whose length is 4 cm …
KC Sinha Mathematics Solution Class 10 Chapter 11 Circles Exercise 11.1 Read More »
Exercise 10.4 Question 1 A Find the area of the triangle whose vertices are (3, -4), (7, 5), (-1, 10) Sol : Given: (3, -4), (7, 5), (-1, 10) Let us Assume A(x1, y1) = (3, -4) Let us Assume B(x2, y2) = (7, 5) Let us Assume C(x3, y3) = (-1, …
KC Sinha Mathematics Solution Class 10 Chapter 10 Coordinates Geometry Exercise 10.4 Read More »
Exercise 10.3 Question 1 A Find the coordinates of the point which divides the line segment joining (2,4) and (6,8) in the ratio 1:3 internally and externally. Sol : Let P(x,y) be the point which divides the line segment internally. Using the section formula for the internal division, i.e. …(i) Here, m1 = 1, …
KC Sinha Mathematics Solution Class 10 Chapter 10 Coordinates Geometry Exercise 10.3 Read More »
Exercise 10.2 Question 1 A Find the distance between the following pair of points: (0, 0), (- 5, 12) Sol : Given points are (0, 0) and (- 5, 12) We need to find the distance between these two points. We know that distance(S) between the points (x1, y1) and (x2, y2) is …
KC Sinha Mathematics Solution Class 10 Chapter 10 Coordinates Geometry Exercise 10.2 Read More »
Exercise 10.1 Question 1 A In which quadrants do the following points lie: (10, -3) Sol : Given coordinate (10,-3) lies in Quadrant IV because as shown in the figure that those coordinate who have (+, -) sign lies in IV quadrants, or can say whose x-axis is “+” and y-axis is “–“ lies …
KC Sinha Mathematics Solution Class 10 Chapter 10 Coordinates Geometry Exercise 10.1 Read More »
Exercise 9.1 Question 1 In ΔABC, ∠ A = 90°, AB = 12 cm and cm, then find ∠B. Sol : Let us draw a diagram according to the question specification so that it gives us a better understanding of the problem. We know that According to the question, it is asked that we find the angle of B. …
Exercise 8.4 Question 1 The sum of n terms of an A.P. is . Find its 20th term. Sol : Taking n = 1, we get ⇒ S1 = 4 ⇒ a1 = 4 Taking n = 2, we get ⇒ S2 = 13 ∴ a2 = S2 – S1 = 13 – 4 = 9 Taking n = 3, we get ⇒ S3 = 27 ∴ a3 = S3 – …
KC Sinha Mathematics Solution Class 10 Chapter 8 Arithmetic Progressions Exercise 8.4 Read More »
Exercise 8.3 Question 1 Three numbers are in A.P. Their sum is 27 and the sum of their squares is 275. Find the numbers. Sol : Let the three numbers are in AP = a, a + d, a + 2d According to the question, The sum of three terms = 27 ⇒ a + (a …
KC Sinha Mathematics Solution Class 10 Chapter 8 Arithmetic Progressions Exercise 8.3 Read More »
Exercise 8.2 Question 1 A Find the indicated terms in each of the following arithmetic progression: 1, 6, 11, 16, …, t16, Sol : Given: 1, 6, 11, 16, … Here, a = 1 d = a2 – a1 = 6 – 1 = 5 and n = 16 We have, tn = …
KC Sinha Mathematics Solution Class 10 Chapter 8 Arithmetic Progressions Exercise 8.2 Read More »
Exercise 8.1 Question 1 A Write the first three terms of the following sequences defined by: tn = 3n + 1 Sol : Given: tn = 3n + 1 Taking n = 1, we get t1 = 3(1) + 1 = 3 + 1 = 4 Taking n = 2, we get t2 = 3(2) + 1 = 6 …
KC Sinha Mathematics Solution Class 10 Chapter 8 Arithmetic Progressions Exercise 8.1 Read More »
Exercise 7.5 Question 1 Divide 12 into two parts such that their product is 32. Sol : Let the first number be ‘X’, so the other number will be ’(12–X)’. ∵ X (12 – X) = 32 12X – X2 = 32 X2 – 12X + 32 = 0 On factorising further, X2 – 4X – 8X + 32 …
KC Sinha Mathematics Solution Class 10 Chapter 7 Quadratic Equations Exercise 7.5 Read More »
Exercise 7.4 Question 1 A Write the discriminate of each of the following quadratic equation: x2 + 4x + 3 =0 Sol : d = b2 – 4ac d = (4)2 – 4 (1) (3) d = 16 – 12 d = 4 Question 1 B Write the discriminate of each of the following quadratic equation: 4×2 + 5x …
KC Sinha Mathematics Solution Class 10 Chapter 7 Quadratic Equations Exercise 7.4 Read More »
Exercise 7.3 Question 1 Determine whether and are the solutions of the equation 6×2 — x — 12 = 0 or not. Sol : Put both the values of x in the equation. When = 0 When = 0 R.H.S = L.H.S Therefore, and are the solutions of the given equation. Question 2 Determine whether (i) x = 1, (ii) …
KC Sinha Mathematics Solution Class 10 Chapter 7 Quadratic Equations Exercise 7.3 Read More »
Exercise 7.2 Question 1 A Check whether the following are quadratic equations: (x − 2) (x + 1) = (x − 1) (x + 3) Sol : Given; (x − 2) (x + 1) = (x − 1) (x + 3) ⇒ x2 + x − 2x − 2 = x2 + 3x − x − 3 ⇒ x2 − …
KC Sinha Mathematics Solution Class 10 Chapter 7 Quadratic Equations Exercise 7.2 Read More »
Exercise 7.1 Question 1 A Which of the following is a quadratic polynomial? (i) 2 –x2 (ii) x+ (iii) x+ (iv) x2 +3+2 Sol : (i) On solving the equations, Re-writing in the format of ax2 + bx + c = 0 ∵ b = 0 & c = 2 So, following the ideal pattern of a quadratic polynomial is a quadratic …
KC Sinha Mathematics Solution Class 10 Chapter 7 Quadratic Equations Exercise 7.1 Read More »
Exercise 6.4 Question 1 The following distribution gives the daily income of 50 workers of a factory: Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive. Sol : Now, taking upper class limits on x- axis and their respective frequencies on y-axis we can draw its ogive as …
KC Sinha Mathematics Solution Class 10 Chapter 6 Statistics Exercise 6.4 Read More »
Exercise 6.3 Question 1 Find the median of the following data: Sol : Now, items from 23 to 32 have value of variate 14 as shown by cumulative frequency. ∴ Median = 14 Question 2 Find the median of the following distribution: Sol : Now, persons from 100 to 110 have daily wages 29 as shown …
KC Sinha Mathematics Solution Class 10 Chapter 6 Statistics Exercise 6.3 Read More »
Exercise 6.2 Question 1 Find mode of the following data: 64, 61, 62, 62, 63, 61, 63, 64, 64, 60, 65, 63, 64, 65, 66, 64 Sol : Here, we can see that 64 observation has the maximum frequency. Hence, Mode = 64 Question 2 Find the mode of the following distribution: Sol : Here, …
KC Sinha Mathematics Solution Class 10 Chapter 6 Statistics Exercise 6.2 Read More »
Exercise 6.1 Question 1 The mean of 11 results is 30. If the mean of the first 6 results is 28 and that of last 6 results is 32, find the 6th result. Sol : Let the 6th number be x Given that mean of 11 results = 30 ∴ sum of 11 numbers = 11 × …
KC Sinha Mathematics Solution Class 10 Chapter 6 Statistics Exercise 6.1 Read More »
Exercise 5.5 Question 1 Sides of some triangles are given below. Determine which of them are right triangles (i) 8 cm, 15 cm, 17 cm (ii) (2a —1) cm, cm and (2a + 1) cm (iii) 7 cm, 24 cm, 25 cm (iv) 1.4 cm, 4.8 cm, 5 cm Sol : (i) Using Pythagoras theorem, i.e. …
KC Sinha Mathematics Solution Class 10 Chapter 5 Triangles Exercise 5.5 Read More »
Exercise 5.4 Question 1 In two similar triangles ABC and DEF, AC = 3 cm and DF = 5 cm. Find the ratio of the areas of the two triangles. Sol : Given: ΔABC ~ ΔDEF and AC = 3 cm and DF = 5 cm To find: Areas of the two triangles We know …
KC Sinha Mathematics Solution Class 10 Chapter 5 Triangles Exercise 5.4 Read More »
Exercise 5.3 Question 1 State which of the following pairs of triangles are similar. Write the similarity criterion used and write the pairs of similar triangles in symbolic form (all lengths of sides are in cm). (i) (ii) (iii) (iv) (v) (vi) (vii) Sol : (i) In ABC, ∠A = 70° and ∠B = 50° And we …
KC Sinha Mathematics Solution Class 10 Chapter 5 Triangles Exercise 5.3 Read More »
Exercise 5.2 Question 1 In ΔABC, P and Q are two points on AB and AC respectively such that PQ || BC and , then find. Sol : Given: PQ || BC and By Basic Proportionality theorem which states that if a line is drawn parallel to one side of a triangle the other two sides in distinct …
KC Sinha Mathematics Solution Class 10 Chapter 5 Triangles Exercise 5.2 Read More »
Exercise 5.1 Question 1 Fill in the blanks with the correct word given in brackets: (i) All squares are having the same length of sides are………. [similar, congruent, both congruent and similar] (ii) All circles having the same radius are ………. [similar, congruent, both congruent and similar] (iii) All rhombuses having one angle 90o ………. [similar, …
KC Sinha Mathematics Solution Class 10 Chapter 5 Triangles Exercise 5.1 Read More »
Exercise 4.4 Question 1 Fill in the blanks (i) sin2 θ cosec2 θ = …….. (ii) 1 + tan2 θ = …… (iii) Reciprocal sin θ. cot θ = …… (iv) 1–…….= cos2θ (v) (vi) (vii) cos θ is reciprocal of ……… (viii) Reciprocal of sin θ is……… (ix) Value of sin θ in terms of cos θ is (x) Value of cos θ in terms …
Exercise 4.3 Question 1 Express the following as trigonometric ratio of complementary angle of θ. (i) cos θ (ii) sec θ (iii) cot θ (iv) cosec θ (v) tan θ Sol : (i) We know that ⇒ cosθ = sin (90° – θ) (ii) We know that (iii) We know that (iv) We know that (v) We know that …
Exercise 4.2 Question 1 Find the value of the following : (i) sin 30o + cos 60o (ii) sin2 45o+cos245o (iii) sin 30o + cos 60o – tan45o (iv) (v) tan 60o x cos30o Sol : (i) sin 30o + cos 60o We know that, > So, sin(30o) + cos(60o) =1 (ii) sin2 45o+cos245o We know that, So, sin2 45o+cos245o =1 (iii) sin …
Exercise 4.1 Question 1 From the given figure, find the value of the following: (i) sin C (ii) sin A (iii) cos C (iv) cos A (v) tan C (vi) tan A Sol : (i) Sin C We know that, So, here θ = C Side opposite to ∠C = AB = 3 Hypotenuse = AC = …
Exercise 3.5 Question 1 The sum of the two numbers is 18. The sum of their reciprocals is 1/4. Find the numbers. Sol : Let the two numbers be x and y. According to the question, x + y = 18 …(i) …(ii) Eq. (ii) can be re – written as …(iii) On putting the …
Exercise 3.4 Question 1 A Solve the following pair of linear equation by cross – multiplication method: 8x + 5y = 9 3x + 2y = 4 Sol : Given, pair of equations is 8x + 5y – 9 = 0 and 3x + 2y – 4 = 0 By cross – multiplication method, we …
Exercise 3.3 Question 1 A Solve the following system of equations by elimination method: 3x – 5y – 4 = 0 9x = 2y + 7 Sol : Given pair of linear equations is 3x – 5y – 4 = 0 …(i) And 9x = 2y + 7 …(ii) On multiplying Eq. (i) by 3 …
Exercise 3.2 Question 1 A Solve the following pair of linear equations by substitution method: 7x— 15y = 2 x + 2y = 3 Sol : Given equations are 7x – 15y = 2 …(i) x + 2y = 3 …(ii) From eqn (ii), x = 3 – 2y …(iii) On substituting x = 3 – …
Exercise 3.1 Question 1 Sudha went to market with her friends. They wanted to eat `gol – gappa’ as well as `dahi – bhalla’. The number of plates of gol – gappa taken by them is half that of dahi – bhalla. The cost of one plate of gol – gappa was Rs. 10 and …
Exercise 2.3 Question 1 Divide 2×3 + 3x + 1 by x + 2 and find the quotient and the reminder. Is q(x) a factor of 2×3 + 3x + 1 ? Sol : Here, dividend and divisor both are in the standard form. Now, on dividing p(x) by g(x) we get the following division process Quotient …
KC Sinha Mathematics Solution Class 10 Chapter 2 Polynomials Exercise 2.3 Read More »
Exercise 2.2 Question 1 A Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients: x2 – 3 Sol : Let f (x) = x2 – 3 Now, if we recall the identity (a2 – b2) = (a – b)(a + b) Using this identity, we can write x2 – 3 …
KC Sinha Mathematics Solution Class 10 Chapter 2 Polynomials Exercise 2.2 Read More »
Exercise 2.1 Question 1 Examine, seeing the graph of the polynomials given below, whether they are a linear or quadratic polynomial or neither linear nor quadratic polynomial: (i) (ii) (iii) (iv) (v) (vi) (vii) (viii) Sol : (i) In general, we know that for a linear polynomial ax + b, a≠0, the graph of y = ax + b is a …
KC Sinha Mathematics Solution Class 10 Chapter 2 Polynomials Exercise 2.1 Read More »
Exercise 1.4 Question 1 A Without actually performing the long division, state whether the following rational numbers have terminating or non-terminating repeating (recurring) decimal expansion. Sol : Given rational number is is terminating if a) p and q are co-prime & b) q is of the form of 2n 5m where n and m are non-negative integers. …
KC Sinha Mathematics Solution Class 10 Chapter 1 Real numbers Exercise 1.4 Read More »
Exercise 1.3 Question 1 Prove that √2 is irrational. Sol : Let us assume that √2 is rational. So, we can find integers p and q (≠ 0) such that √2 = . Suppose p and q have a common factor other than 1. Then, we divide by the common factor to get √2 = , where …
KC Sinha Mathematics Solution Class 10 Chapter 1 Real numbers Exercise 1.3 Read More »
Exercise 1.2 Question 1 A Express each of the following numbers as a product of its prime factors: Sol : Given number is 4320 Factorization of 4320 is Hence, 4320 = 25 × 33 × 5 (Product of its prime factors) Question 1 B Express each of the following numbers as a product of its prime factors: …
KC Sinha Mathematics Solution Class 10 Chapter 1 Real numbers Exercise 1.2 Read More »
Exercise 1.1 Question 1 A Using Euclid’s division algorithm, find the HCF of 156 and 504 Sol : Given numbers are 156 and 504 Here, 504 > 156 So, we divide 504 by 156 By using Euclid’s division lemma, we get 504 = 156 × 3 + 36 Here, r = 36 ≠ 0. On taking …
KC Sinha Mathematics Solution Class 10 Chapter 1 Real numbers Exercise 1.1 Read More »
The Book that Saved the Earth Summary In English Scene 1 It is the time of twenty-fifth century. The place is of the Museum of Ancient History. It is Dept, of the Twentieth Century on the Planet earth. Historical is sitting on a table. There is a movie projector on the table. Historian says how …
Bholi Summary In English I About Bholi Her name was Sulekha. But since childhood she had been called Bholi, the simpleton. Bholi was the fourth daughter of Numberdar Ramlal. When Bholi was ten months old, she had fallen from the cot. She had damaged some part of her brain. So due to that she remained …
The Hack Driver Summary In English The narrator goes to New Mullion The narrator states that he passed his graduation with honours. Then he became a junior assistant clerk in a good law firm. He was sent to serve summons. Some beat him up. He had to/go to dirty places to serve summons on people. …
The Necklace Summary In English I Matilda a dreamy woman Matilda was very pretty. But due to ill fate, she was bom in a family of clerk. She had no dowry, no hopes. She had no means to become known and loved by rich men. So she married a clerk, Mr. Loisel, in the Education …
The Making of a Scientist Summary In English Ebright’s achievement at young age A former ‘scout of the year’ excited the scientific world with a new theory. This he did at the age of 22 years. It was on how cells work. Richard H. Ebright and his college roommate explained the theory in an article. …
Footprints without Feet Summary In English Boys see footprints from nowhere The two boys were surprised to see the fresh muddy imprints. These were of a pair of bare feet. As they gazed, a fresh footmark appeared from nowhere. Then they saw further steps down the street. Thereafter, they disappeared. Footprints of Griffin, an invisible …
A Question of Trust Summary In English Horace Danby’s place in social circle Horace Danby had a good reputation in the society. He was about fifty and unmarried. He made locks and had two helpers. He was well and happy. But he had attacks of hay fever in summer. But he was not completely honest. …
The Midnight Visitor Summary In English About secret agent Ausable Ausable was a secret agent. But he did not look like that. Fowler felt sad that Ausable did not look like a secret agent. Ausable had a room on the sixtli and top floor of a French hotel. Ausable and Fowler together Ausable was very …
The Thief’s Story Summary In English How the narrator (a thief) befriends Anil The narrator was a thief when he met Anil. He was only 15. Anil had been watching a wrestling match when he went to him. Anil was about 25 and was lean and tall. He looked kind, simple and easy-going. The narrator …
A Triumph of Surgery Summary In English Tricki’s illness The narrator of the story is Mr. Herriot. He is a veterinary surgeon. He was really worried about the dog. Its name was Tricki. He was shocked to see it with its mistress. It had become hugely’fat. Its eyes had become red. Its tongue came out …
For Anne Gregory Summary In English In this poem, a young man discusses why a person falls in love, that is what determines it. According to them a person is not loved for his basic nature but because of his/her physical feature, i.e., outward physical appearance. It is not possible to love one for oneself. …
The Tale of Custard the Dragon Summary In English This is a story of a girl Belinda, who has some strange pets. They have queer names. She calls the black kitten Ink, the little grey mouse as Blink, the yellow dog as Mustard and the cowardly dragon Custard. Belinda’s, the kitten, the mouse and the …
Fog Summary In English In this poem, the poet has beautifully shown how the fog comes stealing forward just like a cat does. Just as the cat sits on its haunches, the fog too seems to be sitting quietly watching the harbour and the city and then quietly moves onwards. The poet Carl Sandburg …
The Trees Summary In English Adrienne Rich’s poem ‘The Trees’ is a voice with a body engaged in activities and sensing intrusions that are not organic to the conventions of a nature poem. This poem narrates the struggle of a population of trees to escape the confines of a green house or container of nature. …
Animals Summary In English In this poem, Walt Whitman has beautifully brought out the contrast between animals and human beings. Animals are generally simple in nature whereas human beings are generally greedy, selfish and very complicated. He is very happy with the easy going nature of animals and he wants to follow them. The …
Amanda Summary In English The poem Amanda is about a small child whose parents are forever nagging her about what to do and what not to do. This frequent interference makes her very unhappy. It seems as if she is not free to do anything that she wants to do. She wants freedom from all …
The Ball Poem Summary In English Once a boy was playing with his ball. It was bouncing in the street up and down. The boy was happily enjoying the game. While bouncing, suddenly it fell in the water and was lost. Without the ball the boy became full of grief. The poet said and …
How to Tell Wild Animals Summary In English It is a humorous poem. The poet suggests some dangerous ways of identifying wild animals. The suggested ways create humour. He says if you ever visit the jungles in the east and you happen to encounter a lion, a tiger or a leopard, you’ll be able to …
A Tiger in the Zoo Summary In English ‘This poem contrasts a tiger in the zoo with the tiger in its natural habitat. The poem moves from the zoo to the jungle, and back again to the zoo. The poem provides a contrast in the mood and environment of a tiger when he is in …
Fire and Ice Summary In English ‘Fire and Ice’ is a short poem by Robert Frost. In this poem, the poet refers to two predictions of how the world will end. Some say it will end in fire whereas others say it will end in ice. According to the poet ‘fire’ stands for desire, greed, …
Dust of Snow Summary In English ‘Dust of Snow’ is a beautiful short poem written by Robert Frost. This poem tells that even a simple moment has a large significance. The poet has mentioned crow and hemlock tree in this poem. Crow signifies his depressive and sorrowful mood and hemlock tree is a poisonous tree. …
The Proposal Summary In English Lomov is received in Chubukov’s house It is Chubukov’s house. Lomov enters. Chubukov meets him. Chubukov is extremely happy to meet him. He asks him to sit down. He also asks him where he is going in the evening dress. Lomov tells him the purpose of his visit Lomov tells …
The Sermon at Benares Summary In English Gautama Buddha a Prince Gautama Buddha (563 B.C.-483 B.C.) was a prince. His name was Siddhartha Gautama. At twelve he was sent away for schooling in the Hindu sacred scriptures. He returned after four years. He married a princess. They had a son. World sufferings make Gautama a …
Madam Rides the Bus Summary In English I About Valliammai There was a girl named Valliammai. She was called Valli for short. She was eight years old. She wanted to know many things. She would stand in the front door way of her house. She would see what was happening outside. She had no playmates. …
Mijbil the Otter Summary In English I Author’s decision to keep a pet otter The author went to southern Iraq early in the new year of 1956. He decided that he would keep a pet otter instead of a dog. His place of living Camusfearfia had much water around it. So it would be suitable …
Glimpses of India Summary In English I. A Baker From Goa Bakers of Goa known as Pader In old Portuguese days, the people of Goa ate loaves of bread. Now these loaves have disappeared. But their makers are still there. The furnaces also exist there even now. The sound of the traditional bakers’ bamboo can …
The Hundred Dresses – II Summary In English Miss Mason reads Wanda’s father’s letter The class was circling the room. A notice from the principal’s office came. Miss Mason read it and clapped her hands. She announced that she had a letter from Wanda’s father. She would read that before the class. Letter read out …
The Hundred Dresses – I Summary In English Wanda Petronski’s Seat It was Monday. Wanda Petronski was not in her seat. Nobody including Peggy and Madeline saw her absence. They started all the fun. Wanda’ used to sit in the next to the last seat in the last row. It was in Room 13. She …
From the Diary of Anne Frank Summary In English Anne’s feelings about diary Anne writes her diary. She feels that doing so is a strange experience for one like her. It is so because she has not written anything earlier. Secondly, no one would be interested in reading something written by her as she is …
Two Stories about Flying Summary In English I. His First Flight The young seagull called to fly The young seagull was alone on his ledge. His two brothers and his sister had already flown away. When he wanted to fly, he could not do so. He was very much afraid of flying. Therefore, he failed …
Nelson Mandela: Long Walk to Freedom Summary In English The inauguration day Tenth May dawned. It was bright and clear. Many world leaders had been coming to the author to pay respects to him. It was before the inauguration. The inauguration was to be the largest gathering of world leaders there. The place of inauguration …
A Letter to God Summary In English Lencho’s house and crop Lencho had his lonely house in the valley. It was situated on the top of a low hill. From there one could see the river and the fields. Lencho had a good crop. But it needed rains badly. It starts raining Lencho saw the …
Julius Caesar Summary In English The extracts given in this chapter cover an important part of William Shakespeare’s play Julius Caesar in five Acts. These cover mainly those parts in which Julius Caesar is murdered by the conspirators, including Brutus, famous for his uprightness. These also show how Antony turns the tables against them in …
The Dear Departed Summary In English Introduction ‘The Dear Departed’ shows the hollow relations between two daughters and their aged father. These relations are purely governed by selfishness and greediness of the daughters. How the old father neutralises their designs to grab his items is the climax of the play. The play, thus, reveals the …
Snake Summary In English Introduction In this poem the poet describes how a snake came to his water trough one hot day to drink water. The poet threw a log at it but it escaped into its hole. The poet stood criticizing himself for this act. What he says in his reaction is the subject …
The Rime of the Ancient Mariner Summary In English Part I Introduction The poem is about sin and repentance or crime and punishment. It describes how the ancient mariner kills the Albatross. The Polar spirit takes revenge on him and other mariners. Their sufferings are described in these parts vividly. Ancient Mariner stops a Wedding-Guest …
Ozymandias Summary In English The narrator relates what the traveller tells him The narrator says that he met a traveller from a very old land. He told him what he saw there in a desert. Describing what the traveller saw The traveller told the narrator that he saw a broken statue of a man in …
Not Marble, nor the Gilded Monuments Summary In English Poet’s beloved and gilded monuments The poet addresses this sonnet to his beloved or friend. He says that marbled or gilded monuments built in memories of princes etc, shall not outlive this sonnet. His beloved , shall shine more bright in this sonnet than these stoned …
Mirror Summary In English Mirror defines itself In this poem the mirror is itself the speaker. It says that it is silver and exact. It has no romantic preconceptions. Whatever it looks at, it absorbs within itself. Or whosoever looks at it, is absorbed within it. There is nothing like love or hatred in it. …
The Frog and the Nightingale Summary In English Frog in Bingle Bog Once upon a time a frog croaked in Bingle Bog every night. His voice was very loud and unpleasant. He croaked in a loud noise continuously throughout the night. So other crea¬tures living there hated it. Insults, brick-bats and complaints, too, could not …
Virtually True Summary In English Introduction “Virtually True’ is all about computers, video games, virtual reality, 3-D/three dimensional techniques etc. This all is interwoven around the story of Sebastian Shultz, in relation to the video games. It is interesting to read ‘Virtually True’ in the light of modern fiction having the latest gizmos. Newspaper article …
Patol Babu, Film Star Summary In English Introduction ‘Patol Babu, Film Star’ is a story of Patol Babu who, once, had been in great demand for stage shows. But now he was hard up due to no work. He had been struggling much to make a living. An offer for a little role in a …
A Shady Plot Summary In English Introduction ‘A Shady Plot’ is, indeed, a ghost story. It relates how John Hallock feels desperate to write a ghost story as demanded by Jenkins. When he feels that he can’t, he sees the ghost of Helen. What happens thereafter is very interesting as it nearly breaks his relationship …
The Letter Summary In English Ali’s going to post office in early morning In the early dawn, stars glowed as the old I man went. He recollected the happy memories of his life. He was walking through the town. He was pulling his torn clothes tightly close I to his body as it was very …
Mrs. Packletide’s Tiger Summary In English Introduction ‘Mrs Packletide’s Tiger’ shows womanly vanity, hypocrisy and jealousy in a humorous way. Mrs Packletide pre-arranges the tiger hunt. It brings out the taunt of the author on womanhood. To show herself more than Loona Bimberton she has to part with a lot of money to hush up …
Two Gentlemen of Verona Summary In English Introduction ‘Two Gentlemen of Verona’ is all about the two teenage brothers who prove that they are more than their age in gentlemanliness and humanism. Despite their boyish nature they act like adults and brave the struggles of life. How they look after their sister is just rare. …
Chapter 19 – Volume and Surface Areas of Solids Exercise Ex. 19A Question 1 Two cubes each of volume 27 cm’ are joined end to end to form a solid. Find the surface area of the resulting cuboid. Solution 1 Question 2 Solution 2 Question 3 If the total surface area of a solid hemisphere …
Chapter 18 – Areas of Circle, Sector and Segment Exercise Ex. 18A Question 1 Solution 1 Question 2 The circumference of a circle is 22 cm. Find the area of its quadrant. Solution 2 Question 3 What is the diameter of a circle whose area is equal to the sum of the areas of two …
Chapter 17 – Perimeter and Areas of Plane Figures Exercise Ex. 17A Question 1 Find the area of the triangle whose base measures 24 cm and the corresponding height measures 14. 5 cm. Solution 1 Question 2 Find the area of the triangle whose sides are 42 cm, 34 cm and 20 cm in length. …
Chapter 16 – Co-ordinate Geometry Exercise Ex. 16A Question 1 Find the distance between the points: (i) A(9,3) and B(15, 11) (ii) A(7, -4) and B(-5, 1) (iii) A(-6, -4) and B(9, -12) (iv) A(1, -3) and B(4, -6) (v) P(a + b, a – b) and Q(a – b, a + b) (vi) P(a …
Chapter 15 – Probability Exercise Ex. 15A Question 1 Fill in the blanks: (i) The probability of an impossible event is ……. . (ii) The probability of a sure event is ……. . (iii) For any event E, P(E) + P(not E)= …… . (iv) The probability of a possible but not a sure event lies between …… and …
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Chapter 14 – Height and Distance Exercise Ex. 14 Question 1 A tower stands vertically on the ground. From a point on the ground which is 20 m away from the foot of the tower, the angle of elevation of its top is found to be 60°. Find the height of the tower. [Take ] …
Chapter 13 – Constructions Exercise Ex. 13A Question 1 Solution 1 Question 2 Draw a line segment of length 7.6 cm and divide it in the ratio 5 : 8. Measure the two parts. Solution 2 Question 3 Solution 3 Question 4 Solution 4 Question 5 Solution 5 Question 6 Construct a ∆ABC in …
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Chapter 12 – Circles Exercise Ex. 12A Question 1 Find the length of tangent drawn to a circle with radius 8 cm from a point 17 cm away from the centre of the circle. Solution 1 PA is the tangent to the circle with center O and radius AO = 8 cm. The point P …
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Chapter 11 – Arithmetic Progressions Exercise Ex. 11A Question 1 Show that each of the progressions given below is an AP. Find the first term, common difference and next term of each. 9, 15, 21, 27, ….. Solution 1 Question 2 Show that each of the progressions given below is an AP. Find the first …
Chapter 10 – Quadratic Equations Exercise Ex. 10A Question 1 Which of the following are quadratic equations in x? (i) Solution 1 (i)is a quadratic polynomial = 0 is a quadratic equation Question 2 Which of the following are quadratic equations in x? Solution 2 Clearly is a quadratic polynomial is a quadratic equation. Question 3 …
Chapter 9 – Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph and Ogive Exercise Ex. 9A Question 1 If the mean of 5 observation x, x + 2, x + 4, x + 6 and x + 8 is 11, find the value of x. Solution 1 Question 2 If the mean of 25 …
Chapter 8 – Trigonometric Identities Exercise Ex. 8A Question 1 Prove the following identities: Solution 1 (i) LHS = RHS (ii) LHS = RHS Question 2 Prove the following identities: (i) (ii) (iii) Solution 2 (i) LHS = RHS (ii) LHS = RHS (iii) LHS = RHS …
Chapter 7 – Trigonometric Ratios of Complementary Angles Exercise Ex. 7 Question 1 Without using trigonometric tables, evaluate: Solution 1 (i) (ii) (iii) (iv) (v) (vi) Question 2 Without using trigonometric tables, prove that: (i) (ii) (iii) (iv) (v) (vi) (vii) (viii) (ix) Solution 2 (i) LHS = cos81° …
Chapter 6 – T-Ratios of Some Particular Angles Exercise Ex. 6 Question 1 Evaluate the following: sin 60o cos 30o + cos 60o sin 30o Solution 1 On substituting the value of various T-ratios, we get sin60o cos30o + cos60o sin30o Question 2 Evaluate the following: cos 60o cos 30o – sin 60o sin …
R S AGGARWAL AND V AGGARWAL Solutions for Class 10 Maths Chapter 5 – Trigonometric Ratios Chapter 5 – Trigonometric Ratios Exercise Ex. 5 Question 1 If , find the values of all T-ratios of . Solution 1 Given: Let us draw a ABC in which B = 90o and BAC = Question 2 If …
R S AGGARWAL AND V AGGARWAL Solutions for Class 10 Maths Chapter 3 – Linear equations in two variables Chapter 3 – Linear equations in two variables Exercise Ex. 3A Question 1 Solve each of the following systems of equations graphically: 2x + 3y = 2 x – 2y = 8 Solution 1 …
CBSE Previous Year Question Papers Class 10 Sanskrit 2018 अवधि: होरात्रयम् पूर्णाङ्का: 80 रखण्डः क 10 अपठितांश – अवबोधनम् (अपठितांश – अवबोधन) प्रश्न 1. अधोलिखितम् अनुच्छेदं पठित्वा प्रदत्तप्रश्नान् संस्कृतेन उत्तरत : निम्नलिखित अनुच्छेद को पढ़कर दिए गए प्रश्नों के उत्तर संस्कृत में दीजिए। कस्मिंश्चित् ग्रामे कदाचन अशीतिवर्षीयः एको वृद्धः मार्गे आम्रवृक्षान् आरोपयति स्म। तं दृष्ट्वा …
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CBSE Previous Year Question Papers Class 10 Sanskrit 2019 Delhi अवधि: होरात्रयम्। पूर्णांका : 80 खण्डः क 10 अपठितांश-अवबोधनम् (अपठितांश-अवबोधन) प्रश्न 1. अधोलिखितम् अनुच्छेदं पठित्वा प्रदत्तप्रश्नानाम् उत्तराणि संस्कृतेन लिखते। निम्नलिखित अनुच्छेद को पढ़कर दिए गए प्रश्नों के उत्तर संस्कृत में लिखिए। भारतवर्षे ‘ग्रीष्म-वर्षा-शरद्-हेमन्त-शिशिर-वसन्त’ इति षड् ऋतवः भवन्ति । तेषु ‘वसन्तः’ ऋतुराजः कथ्यते। बसन्तः ऋतु: फाल्गुने …
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CBSE Previous Year Question Papers Class 10 Sanskrit 2019 Outside Delhi अवधि: होरात्रयम् पूर्णाका : 80 निर्देशा : (i) अस्मिन् प्रश्नपत्रे चत्वारः खण्डाः सन्ति । (ii) प्रत्येकं खण्डम् अधिकृत्य उत्तराणि एकस्मिन् स्थाने क्रमेण लेखनीयानि। (iii) प्रश्नसंख्या प्रश्नपत्रानुसारम् अवश्यमेव लेखनीया। (iv) सर्वेषां प्रश्नानाम् उत्तराणि संस्कृतेन लेखनीयानि। खण्डः क अपठितांश-अवबोधनम् (अपठितांश-अवबोधन) प्रश्न 1. अधोलिखितम् अनुच्छेदं पठित्वा प्रदत्तप्रश्नानाम् …
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CBSE Previous Year Question Papers Class 10 Hindi B 2018 निर्धारित समय :3 घण्टे अधिकतम अंक : 80 खंड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर दिए गए प्रश्नों के उत्तर 20-30 शब्दों में लिखिए : हँसी भीतरी आनंद का बाहरी चिह्न है। जीवन की सबसे प्यारी और उत्तम से उत्तम वस्तु एक बार …
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CBSE Previous Year Question Papers Class 10 Hindi B 2015 Term 1 निर्धारित समय :3 घण्टे अधिकतम अंक : 90 खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर नीचे दिए गए प्रश्नों के उत्तर संक्षेप में लिखिए [12] आज हम सभी परेशान हैं कि समय पर वर्षा नहीं होती। कहीं अतिवृष्टि है, कहीं अल्पवृष्टि …
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CBSE Previous Year Question Papers Class 10 Hindi B 2016 Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi B 2016 Delhi Term 2 Set-I निर्धारित समय :3 घण्टे खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर लिखिए : [2 × 6 = 12] हम एक ऐसे …
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CBSE Previous Year Question Papers Class 10 Hindi B 2016 Outside Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi B 2016 Outside Delhi Term 2 Set-I खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर लिखिए [2 × 6 = 12] महात्माओं और विद्वानों का सबसे बड़ा …
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CBSE Previous Year Question Papers Class 10 Hindi B 2016 Term 1 Note: Except for the following questions all the remaining questions have been asked in previous sets. खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर लिखिए कभी-कभी मैं अपने मित्रों की परीक्षा लेती हूँ, यह परखने के लिए …
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CBSE Previous Year Question Papers Class 10 Hindi B 2017 Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi B 2017 Delhi Term 2 Set – I निर्धारित समय :3 घण्टे अधिकतम अंक : 90 खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर दीजिए [2 …
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CBSE Previous Year Question Papers Class 10 Hindi B 2017 Outside Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi B 2017 Outside Delhi Term 2 Set – I निर्धारित समय :3 घण्टे अधिकतम अंक : 90 खंड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर लिखिए …
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CBSE Previous Year Question Papers Class 10 Hindi B 2019 Delhi CBSE Previous Year Question Papers Class 10 Hindi B 2019 Delhi Set – I समय : 3 घण्टे अधिकतम अंक : 80 खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पड़कर पूछे गए प्रश्नों के उत्तर दीजिए ‘सफलता चाहने वाले मनुष्य का प्रथम कर्त्तव्य …
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CBSE Previous Year Question Papers Class 10 Hindi B 2019 Outside Delhi CBSE Previous Year Question Papers Class 10 Hindi B 2019 Outside Delhi Set – I निर्धारित समय :3 घण्टे अधिकतम अंक : 80 सामान्य निर्देश : इस प्रश्न-पत्र में चार खंड हैं – क, ख, ग और घ। चारों खंडों के प्रश्नों के …
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CBSE Previous Year Question Papers Class 10 Hindi A 2016 Term 1 खण्ड ‘क’ (अपठित बोध) प्रश्न 1. निम्नलिखित गद्यांश पढ़िए तथा नीचे दिए गए प्रश्नों के लिए सही विकल्प चुनकर लिखिए। [5] निस्संदेह यह फैशन विद्यार्थियों के लिए महँगा सौदा है। वे घरवालों के लिए समस्या बन जाते हैं। अध्यापक उन्हें सिर दर्द …
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CBSE Previous Year Question Papers Class 10 Hindi A 2017 Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi A 2017 Delhi Term 2 Set – I खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को पढ़कर पूछे गये प्रश्नों के लिए सही विकल्प चुनकर लिखिए। [5] देश की आजादी के उनहत्तर वर्ष …
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CBSE Previous Year Question Papers Class 10 Hindi A 2017 Outside Delhi Term 2 CBSE Previous Year Question Papers Class 10 Hindi A 2017 Outside Delhi Term 2 Set – I खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को पढ़कर पूछे गए प्रश्नों के लिए सही विकल्प चुनकर लिखिए [1 × 5 = 5] लोकतन्त्र …
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CBSE Previous Year Question Papers Class 10 Hindi A 2018 समय :3 घण्टे अधिकतम अंक : 80 खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर पूछे गए प्रश्नों के उत्तर प्रत्येक लगभग 20 शब्दों में लिखिए : महात्मा गांधी ने कोई 12 साल पहले कहा थामैं बुराई करने वालों को सजा देने का उपाय …
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CBSE Previous Year Question Papers Class 10 Hindi A 2019 Delhi CBSE Previous Year Question Papers Class 10 Hindi A 2019 Delhi Set – I समय : 3 घण्टे अधिकतम अंक : 80 खण्ड ‘क’ प्रश्न 1. निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़िए और पूछे गए प्रश्नों के उत्तर लिखिए। [8] आजकल दूरदर्शन पर आने वाले …
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CBSE Previous Year Question Papers Class 10 Hindi A 2019 Outside Delhi CBSE Previous Year Question Papers Class 10 Hindi A 2019 Outside Delhi Set – I निर्धारित समय : 3 घण्टे अधिकतम अंक : 80 सामान्य निर्देश : इस श्वश्न-पत्र में चार खंड हैं – क, ख, ग और घ। चारों खंडों के श्रश्नों …
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CBSE Previous Year Question Papers Class 10 English 2014 Term 1 Time allowed : 3 hours Maximum marks: 70 Note : All questions except the following questions have been already asked in the previous sets. SECTION-B (READING SKILLS) 20 Question 1. Read the passage given below carefully: [8] Postal service had its origin in the …
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CBSE Previous Year Question Papers Class 10 English 2015 Delhi Term 2 CBSE Previous Year Question Papers Class 10 English 2015 Delhi Term 2 Set-I Time allowed : 3 hours Maximum Marks : 70 Note : All questions except the following questions been already asked in the previous sets. SECTION – B (WRITING AND GRAMMAR) …
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CBSE Previous Year Question Papers Class 10 English 2015 Outside Delhi Term 2 Time allowed : 3 hours Maximum Marks : 70 SECTION-A (READING) 20 Question 1. Read the passage given below: [8] Kausani is situated at a height of 6,075 feet in the Central Himalayas. It is an unusually attractive little town. It covers …
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CBSE Previous Year Question Papers Class 10 English 2015 Term 1 Time allowed : 3 hours Maximum marks: 70 SECTION-A (READING SKILLS) 20 Question 1. Read the passage given below carefully: [8] Generally, it is the lionesses that do the work of hunting for food. They work together in the most remarkable way. A typical …
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CBSE Previous Year Question Papers Class 10 English 2016 Delhi Term 2 CBSE Previous Year Question Papers Class 10 English 2016 Delhi Term 2 Set-I Time allowed : 3 hours Maximum marks: 70 Note : All questions except the following questions been already asked in the previous sets. SECTION – B (WRITING AND GRAMMAR) 25 …
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CBSE Previous Year Question Papers Class 10 English 2016 Outside Delhi Term 2 CBSE Previous Year Question Papers Class 10 English 2016 Outside Delhi Term 2 Set-I Time allowed: 3 hours Maximum marks: 70 SECTION-A (READING) 20 Question 1. Read the passage given below and answer the questions that follow: [1 × 8 = 8] …
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CBSE Previous Year Question Papers Class 10 English 2016 Term I Time allowed : 3 hours Maximum marks: 70 SECTION – A (READING SKILLS) 20 Question 1. Read the passage given below and answer the questions that follow : [8] The ozone level in Delhi, is more than twice the safe standard and falls in …
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CBSE Previous Year Question Papers Class 10 English 2017 Delhi Term 2 CBSE Previous Year Question Papers Class 10 English 2017 Delhi Term 2 Set-I Time allowed : 3 hours Maximum marks: 70 SECTION – B (WRITING SKILLS WITH GRAMMAR) 25 Question 3. There is a busy road in front of your school. A large …
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CBSE Previous Year Question Papers Class 10 English 2017 Outside Delhi Term 2 CBSE Previous Year Question Papers Class 10 English 2017 Outside Delhi Term 2 Set-I Time allowed : 3 hours Maximum marks: 80 SECTION A (READING) 20 Question 1. Read the passage given below : [8] Then all the windows of the grey …
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CBSE Previous Year Question Papers Class 10 English 2018 Time allowed : 3 hours Maximum marks: 80 SECTION A (READING) 20 Question 1. Read the passage given below: [8] (1) Tourists to Jammu and Kashmir have another attraction — a floating post office on the Dal Lake in Srinagar, the first in the country. ‘Floating …
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CBSE Previous Year Question Papers Class 10 English 2019 Delhi CBSE Previous Year Question Papers Class 10 English 2019 Delhi Set-I Time allowed : 3 Hours Maximum marks : 100 SECTION-A (READING) 20 Question 1. Read the following passage carefully. [8] 1. Few guessed that this quiet, parentless girl growing up in New York City …
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CBSE Previous Year Question Papers Class 10 English 2019 Outside Delhi Time allowed : 3 Hours Maximum marks: 100 General Instructions: The question paper is divided into three sections : Section A : Reading 20 marks Section B: Writing and Grammar 30 marks Section C: Literature 30 marks All questions are compulsory. You may attempt …
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CBSE Previous Year Question Papers Class 10 Social Science 2017 Delhi Term 2 Time allowed: 3 Hours Maximum marks: 80 General Instruction The question paper is divided into four sections – Section A, Section B, Section C, and Section D. The question paper has 26 questions in all. All question are Compulsory. Marks are indicated …
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CBSE Previous Year Question Papers Class 10 Social Science 2018 Time allowed: 3 Hours Maximum marks: 80 General Instruction The question paper is divided into four sections – Section A, Section B, Section C, and Section D. The question paper has 26 questions in all. All question are Compulsory. Marks are indicated against each question. …
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CBSE Previous Year Question Papers Class 10 Social Science 2019 Delhi Time allowed: 3 Hours Maximum marks: 80 General Instruction The question paper is divided into four sections – Section A, Section B, Section C and Section D. The question paper has 26 questions in all. All question are Compulsory. Marks are indicated against each …
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CBSE Previous Year Question Papers Class 10 Social Science 2019 Outside Delhi Time allowed: 3 Hours Maximum marks: 80 General Instruction The question paper is divided into four sections – Section A, Section B, Section C and Section D. The question paper has 26 questions in all. All question are Compulsory. Marks are indicated against …
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CBSE Previous Year Question Papers Class 10 Science 2017 Delhi Term 2 Time allowed: 3 hours Maximum marks: 80 General Instructions: The question paper comprises five Sections, A, B, C, D and E. You are to attempt All the sections. All questions are compulsory. Internal choice is given in Sections B, C, D and E. …
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CBSE Previous Year Question Papers Class 10 Science 2017 Outside Delhi Term 2 Time allowed: 3 hours Maximum marks: 80 General Instructions The question paper comprises five sections, A, B, C, D and E. You are to attempt all the sections. All questions are compulsory. Internal choice is given in Sections B, C, D and …
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CBSE Previous Year Question Papers Class 10 Science 2018 Time allowed: 3 hours Maximum marks: 80 General Instructions The question paper comprises five sections, A, B, C, D, and E. You are to attempt all the sections. All questions are compulsory. Internal choice is given in Sections B, C, D and E. Questions number 1 …
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CBSE Previous Year Question Papers Class 10 Science 2019 Delhi Time allowed: 3 hours Maximum marks: 80 General Instructions The question paper comprises five sections, A, B, C, D and E. You are to attempt all the sections. All questions are compulsory. Internal choice is given in Sections B, C, D and E. Questions number …
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CBSE Previous Year Question Papers Class 10 Science 2019 Outside Delhi Time allowed: 3 hours Maximum marks: 80 General Instructions: The question paper comprises five sections, A, B, C, D and E. You are to attempt all the sections. All questions are compulsory. Internal choice is given in Sections B, C, D and E. Questions …
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CBSE Previous Year Question Papers Class 10 Maths 2017 Delhi Term 2 Time Allowed: 3 hours Maximum Marks: 80 General Instructions: All questions are compulsory. This question paper consists of 30 questions divided into four sections- A, B, C and D. Section A contains 6 questions of 1 mark each, Section B contains 6 questions …
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CBSE Previous Year Question Papers Class 10 Maths 2017 Outside Delhi Term 2 Time Allowed: 3 hours Maximum Marks: 80 General Instructions: All questions are compulsory. This question paper consists of 30 questions divided into four sections- A, B, C and D. Section A contains 6 questions of 1 mark each, Section B contains 6 …
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CBSE Previous Year Question Papers Class 10 Maths 2018 Time Allowed: 3 hours Maximum Marks: 80 General Instructions: All questions are compulsory. This question paper consists of 30 questions divided into four sections- A, B, C and D. Section A contains 6 questions of 1 mark each, Section B contains 6 questions of 2 marks …
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CBSE Previous Year Question Papers Class 10 Maths 2019 Delhi Time Allowed: 3 hours Maximum Marks: 80 General Instructions: All questions are compulsory. This question paper consists of 30 questions divided into four sections- A, B, C and D. Section A contains 6 questions of 1 mark each, Section B contains 6 questions of 2 …
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Chapter 2 – Polynomials Exercise Ex. 2A Question 1 Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients: x2 + 7x + 12 Solution 1 Question 2 Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients: …
R S AGGARWAL AND V AGGARWAL Solutions Mathematics Class 10 Chapter 2 Polynomials Read More »
Chapter 1 – Real Numbers Exercise Ex. 1A Question 1 What do you mean by Euclid’s division lemma? Solution 1 For any two given positive integers a and b there exist unique whole numbers q and r such that Here, we call ‘a’ as dividend, b as divisor, q as quotient and r …
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S Chand Biology Class 10 Solutions Model Test Paper 4 Question 1. Name a reducing agent that may be used to obtain manganese from manganese dioxide. Answer. Aluminium powder is used as the reducing agent to obtain manganese from its oxide. 2Al(s) + 3MgO → Al2O3 + 3Mg(s) Question 2. Why does a ray of …
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S Chand Biology Class 10 Solutions Model Test Paper 3 Question 1. Why is the red color selected for danger signal lights? Answer: The wavelength of red light is the longest in visible light, so the red color is scattered the least by air molecules of the atmosphere and therefore it can reach to a …
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S Chand Biology Class 10 Solutions Model Test Paper 2 Question 1. How is the increase in demand for energy affecting our environment adversely? Answer: As the population increases, so does their demand for energy. More and more of fossil fuels are being used to generate electricity and for transportation purposes. Use of fossil fuels …
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S Chand Biology Class 10 Solutions Model Test Paper 1 Question 1. From amongst the metals sodium, calcium, aluminium, copper and magnesium, name the metal. (a) which reacts with water only on boiling, and (b) another which does not react even with steam. Answer: When metals reacts with water(Hot, cold or steam), they displace hydrogen …
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S Chand Biology Class 10 Solutions Multiple Choice Questions (MCQs) Question 1. In the sketch of the stomatal apparatus given alongside, which one of the following is missing? (1) Cell membranes of the cells (2) Cell walls of the cells (3) Nuclei in the guard cells (4) Chloroplasts in the guard cells Answer: The nuclei …
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Lakhmir Singh Biology Class 10 Solutions Management Of Natural Resources Lakhmir Singh Biology Class 10 Solutions Page No:258 Question 1: Name two fossil fuels. Solution : Coal and Petroleum. Question 2: Name the major programme started to replenish forests. Solution : Silviculture Question 3: Apart from the availability of forest products, name two other things …
S.chand Solution class 10 biology chapter 6 Management of Natural Resources Read More »
Lakhmir Singh Biology Class 10 Solutions Our Environment Lakhmir Singh Biology Class 10 Solutions Page No:226 Question 1: What is the functional unit of the environment comprising of the living and non-living components called ? Solution : Ecosystem. Question 2: Name two natural ecosystems and two artificial ecosystems. Solution : Natural ecosystems – Grass land …
S.chand Solution class 10 biology chapter 5 Our Environment Read More »
Lakhmir Singh Biology Class 10 Solutions Heredity and Evolution Lakhmir Singh Biology Class 10 Solutions Page No:191 Question 1: Which of the processes, sexual reproduction or asexual reproduction, brings about maximum variations in the offsprings ? Solution : Sexual Reproduction Question 2: Name one variation in humans connected with ears. Solution : Free Earlobes. Question …
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Lakhmir Singh Biology Class 10 Solutions How do Organisms Reproduce Lakhmir Singh Biology Class 10 Solutions Page No:141 Question 1: Which life process ensures that a plant or animal species will not disappear from this earth ? Solution : Reproduction. Question 2: What is the name of the reproductive process : (a) which involves two …
S.chand Solution class 10 biology chapter 3 How do Organism Reproduce Read More »
Lakhmir Singh Biology Class 10 Solutions Control and Coordination Lakhmir Singh Biology Class 10 Solutions Page No:92 Question 1: What is the general name of chemical substances which bring about control and coordination in plants ? Solution : Phytohormones. Question 2: Which plant hormone is responsible for the wilting and falling of leaves ? Solution …
S.chand Solution class 10 biology chapter 2 Control and Coordination Read More »
Lakhmir Singh Biology Class 10 Solutions Life Processes Lakhmir Singh Biology Class 10 Solutions Page No:23 Question 1: Which is the basic requirement of living organisms for obtaining energy ? Solution : Food is the basic requirement of living organisms for obtaining energy. Question 2: Which of the following type of energy is used by …
S.chand Solution class 10 biology chapter 1 Life Processes Read More »
Lakhmir Singh Chemistry Class 10 Solutions Periodic Classification Of Elements Lakhmir Singh Chemistry Class 10 Solutions Page No:281 Question 1: (a) On what basis did Mendeleev arrange the elements in his periodic table ? (B) On what basis are they arranged now ? Solution : (a) Mendeleev arrange the element in his periodic table on …
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Lakhmir Singh Chemistry Class 10 Solutions Carbon and Its Compounds Lakhmir Singh Chemistry Class 10 Solutions Page No:220 Question 1: Name the element whose one of the allotropic forms is buckminsterfullerene. Solution : Carbon Question 2: What are the two properties of carbon which lead to the formation of a large number of carbon compounds …
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Lakhmir Singh Chemistry Class 10 Solutions Metals And Non-metals Lakhmir Singh Chemistry Class 10 Solutions Page No:131 Question 1: Name one metal and one non-metal which exist in liquid state at room temperature. Solution : Metal – Mercury. Non metal – Bromine. Question 2: Why are metals called electropositive elements whereas non-metals are called electronegative …
S.chand Solution class 10 chemistry chapter 3 Metals and Non-metals Read More »
Lakhmir Singh Chemistry Class 10 Solutions Acids,Bases And Salts Lakhmir Singh Chemistry Class 10 Solutions Page No:66 Question 1: What colour do the following indicators turn when added to a base or alkali (such as sodium hydroxide) ? (a) methyl orange (b) litmus (c) red cabbage extract Solution : (a) Yellow. (b) Blue. (c) Green. …
S.chand Solution class 10 chemistry chapter 2 Acids , Bases and Salts Read More »
Lakhmir Singh Chemistry Class 10 Solutions Chemical Reactions And Equations Lakhmir Singh Chemistry Class 10 Solutions Page No:18 Question 1: Why is respiration considered an exothermic process ? Solution : Respiration is an exothermic process because energy is produced during this process. Question 2: On what basis is a chemical equation balanced ? Solution : …
S.chand Solution class 10 chemistry chapter 1 Chemical Reactions and Equations Read More »
Lakhmir Singh Physics Class 10 Solutions The Human Eyes And The Colorful World Lakhmir Singh Physics Class 10 Solutions Page No:269 Question 1: What kind of lens is present in the human eye ? Solution : Convex lens Question 2: Name two parts of the eye which refract light rays (or bend light rays) Solution …
S.chand Solution class 10 physics chapter 6 The Human Eyes and The Colourful World Read More »
Lakhmir Singh Physics Class 10 Solutions Refraction Of Light Lakhmir Singh Physics Class 10 Solutions Page No:219 Question 1: If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it ? Solution : It will bend towards the normal. Question 2: If …
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Lakhmir Singh Physics Class 10 Solutions Reflection of Light Lakhmir Singh Physics Class 10 Solutions Page No:173 Question 1: What happens when a ray of light falls normally (or perpendicularly) on the surface of a plane mirror ? Solution : As ray of light falls normally on mirror, this means that angle of incidence is …
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Lakhmir Singh Physics Class 10 Solutions Sources Of Energy Lakhmir Singh Physics Class 10 Solutions Page No:121 Question 1: Name a non-renewable source of energy other than fossil fuels. Solution : Nuclear fuels (like uranium) Question 2: Define calorific value of a fuel. Solution : The amount of heat produced by burning 1 gram of …
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Lakhmir Singh Physics Class 10 Solutions Magnetic Effects of Electric Current Lakhmir Singh Physics Class 10 Solutions Page No:73 Question 1: State any two properties of magnetic field lines. Solution : Prop of magnetic field lines: (i) The magnetic field lines originate from the north pole of a magnet and end at its south pole. …
S.chand Solution class 10 physics chapter 2 Magnetic Effect of Electric Current Read More »
Lakhmir Singh Physics Class 10 Solutions Electricity Lakhmir Singh Physics Class 10 Solutions Page No:5 Question 1: By what other name is the unit joule/coulomb called ? Solution : Volt Question 2: Which of the following statements correctly defines a volt ? (a) a volt is a joule per ampere. (b) a volt is a …
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Page No 44: Question 1: इफ़्फ़न टोपी शुक्ला की कहानी का महत्त्वपूर्ण हिस्सा किस तरह से है? Answer: इफ़्फ़न और टोपी शुक्ला दोनों गहरे दोस्त थे। एक दूसरे के बिना अधूरे थे परन्तु दोनों की आत्मा में प्यार की प्यास थी। इफ़्फ़न तो अपने मन की बात दादी को या टोपी को कह कर हल्का …
NCERT Solutions for Class 10 Hindi chapter 3 टोपी शुक्ला Read More »
Page No 30: Question 1: कोई भी भाषा आपसी व्यवहार में बाधा नहीं बनती−पाठ के किस अंश से यह सिद्ध होता हैं? Answer: बच्चे जब मिलकर खेलते हैं तो उनका व्यवहार, उनकी भाषा अलग होते हुए भी एक ही लगती है। भाषा अलग होने से आपसी खेल कूद, मेल मिलाप में बाधा नहीं बनती। इस …
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Page No 19: Question 1: कथावाचक और हरिहर काका के बीच क्या संबंध है और इसके क्या कारण हैं? Answer: कथावाचक जब छोटा था तब से ही हरिहर काका उसे बहुत प्यार करते थे। जब वह बड़े हो गए तो वह हरिहर काका के मित्र बन गए। गाँव में इतनी गहरी दोस्ती और किसी से …
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Page No 133: Question 1: निम्नलिखित प्रश्नों के उत्तर एक या दो पंक्तियों में दीजिए − कर्नल कालिंज का खेमा जंगल में क्यों लगा हुआ था? Answer: कर्नल कांलिज, वज़ीर अली को गिरफ़्तार करने के लिए जंगल में खेमा डाले बैठा था। पूरी फौज उसके साथ थी। Question 2: निम्नलिखित प्रश्नों के उत्तर एक या दो …
NCERT Solutions for Class 10 Hindi chapter 17 कारतूस Read More »
Page No 122: Question 1: शुद्ध सोना और गिन्नी का सोना अलग क्यों होता है? Answer: शुद्ध सोने में थोड़ा-सा ताँबा मिलाकर गिन्नी बनता है। ऐसा करने से सोना चमकता है। Question 2: प्रेक्टिकल आइडियालिस्ट किसे कहते हैं? Answer: जो लोग आदर्श बनते हैं और व्यवहार के समय उन्हीं आर्दशों को तोड़ मरोड़ कर अवसर …
NCERT Solutions for Class 10 Hindi chapter 16 पतझर में टूटी पत्तियाँ Read More »
Page No 114: Question 1: निम्नलिखित प्रश्न के उत्तर एक दो पंक्तियों में दीजिए − बड़े-बड़े बिल्डर समुद्र को पीछे क्यों धकेल रहे थे? Answer: प्रतिदिन आबादी बढ़ रही है और बिल्डर नई-नई इमरातें बनाने के लिए वन जंगल तो खतम कर ही रहे हैं। साथ ही समुद्र के किनारे इमारतें बनाने के कारण समुद्र को …
NCERT Solutions for Class 10 Hindi chapter 15 अब कहाँ दूसरे के दुख से दुखी होने वाले Read More »
Page No 105: Question 1: निम्नलिखित प्रश्नों के उत्तर एक–दो पंक्तियों में दीजिए − काठगोदाम के पास भीड़ क्यों इकट्ठी हो गई थी? Answer: ख्यूक्रिन नाम के एक सुनार को कुत्ते ने काट लिया। उसने गिरते-पड़ते कुत्ते की टांग को पकड़ा और चीखा “मत जाने दो” उसके चीखने की आवाज़ सुनकर भीड़ इकट्ठी हो गई। Question …
NCERT Solutions for Class 10 Hindi chapter 14 गिरगिट Read More »
Page No 94: Question 1: ‘तीसरी कसम’ फ़िल्म को कौन-कौन से पुरस्कारों से सम्मानित किया गया है? Answer: ‘तीसरी कसम’ फ़िल्म भारत तथा विदेशों में भी सम्मानित हुई। इस फिल्म को राष्ट्रपति द्वारा स्वर्णपदक मिला तथा बंगाल फ़िल्म जर्नलिस्ट एसोसिएशन द्वारा यह सर्वश्रेष्ठ फ़िल्म चुनी गई। फ़िल्म फेस्टिवल में भी इसे पुरस्कार मिला। Question 2: …
NCERT Solutions for Class 10 Hindi chapter 13 तीसरी कसम के शिल्पकार शैलेंद्र Read More »
Page No 83: Question 1: तताँरा-वामीरो कहाँ की कथा है? Answer: तताँरा-वामीरो अंदमान निकोबार द्वीप समुह की प्रचलित लोक कथा है। Question 2: वामीरो अपना गाना क्यों भूल गई? Answer: वामीरो सागर के किनारे गा रही थी। अचानक समुद्र की ऊँची लहर ने उसे भिगो दिया, इसी हड़बडाहट में वह गाना भूल गई। Question 3: …
NCERT Solutions for Class 10 Hindi chapter 12 तताँरा-वामीरो कथा Read More »
Page No 73: Question 1: निम्नलिखित प्रश्नों के उत्तर एक–दो पंक्तियों में दीजिए − कलकत्ता वासियों के लिए 26 जनवरी 1931 का दिन क्यों महत्वपूर्ण था? Answer: देश का स्वतंत्रता दिवस एक वर्ष पहले इसी दिन मनाया गया था। इससे पहले बंगाल वासियों की भूमिका नहीं थी। अब वे प्रत्यक्ष तौर पर जुड़ गए। इसलिए यह …
NCERT Solutions for Class 10 Hindi chapter 11 डायरी का एक पन्ना Read More »
Page No 63: Question 1: कथा नायक की रूचि किन कार्यों में थी? Answer: कथा नायक की रूचि खेल कूद, कँकरियाँ उछालने, गप्पबाजी करने, कागज़ की तितलियाँ बनाने, उड़ाने, उछलकूद करने, चार दीवारी पर चढ़कर नीचे कूदने, फाटक पर सवार होकर उसे मोटर कार बना कर मस्ती करने में थी क्योंकि उसका मन पढ़ाई में …
NCERT Solutions for Class 10 Hindi chapter 10 बड़े भाई साहब Read More »
Page No 49: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − कवि किससे और क्या प्रार्थना कर रहा है? Answer: कवि करुणामय ईश्वर से प्रार्थना कर रहा है कि उसे जीवन की विपदाओं से दूर रखें और शक्ति दे कि इन मुश्किलों पर विजय पा सके। उसका विश्वास अटल रहे। Question 2: निम्नलिखित प्रश्न का उत्तर …
NCERT Solutions for Class 10 Hindi chapter 9 आत्मत्राण Read More »
Page No 44: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − क्या इस गीत की कोई ऐतिहासिक पृष्ठभूमि है? Answer: यह गीत सन् 1962 के भारत–चीन युद्ध की ऐतिहासिक पृष्ठभूमि पर लिखा गया है। चीन ने तिब्बत की ओर से आक्रमण किया और भारतीय वीरों ने इस आक्रमण का मुकाबला वीरता से किया। Question 2: निम्नलिखित प्रश्न का …
NCERT Solutions for Class 10 Hindi chapter 8 कर चले हम फ़िदा Read More »
Page No 39: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − विरासत में मिली चीज़ों की बड़ी सँभाल क्यों होती है? स्पष्ट कीजिए। Answer: विरासत में मिली चीज़ों की बड़ी सँभाल इसलिए होती है क्योंकि ये वस्तुएँ हमें अपने पूर्वजों की, अपने इतिहास की याद दिलाती हैं। इनसे हमारा भावनात्मक संबंध होता है। इसलिए इन्हें अमूल्य …
NCERT Solutions for Class 10 Hindi chapter 7 तोप Read More »
Page No 34: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − प्रस्तुत कविता में ‘दीपक’ और ‘प्रियतम’ किसके प्रतीक हैं? Answer: प्रस्तुत कविता में ‘दीपक‘ ईश्वर के प्रति आस्था एवं आत्मा का और प्रियतम उसके आराध्य ईश्वर का प्रतीक है। कवयित्री दीपक से जीवन की प्रत्येक विषम परिस्थिति से जूँझ कर प्रसन्नतापूर्वक ज्योति फैलाने का आग्रह करती है। …
NCERT Solutions for Class 10 Hindi chapter 6 मधुर-मधुर मेरे दीपक जल Read More »
Page No 28: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − पावस ऋतु में प्रकृति में कौन-कौन से परिवर्तन आते हैं? कविता के आधार पर स्पष्ट कीजिए? Answer: वर्षा ऋतु में मौसम बदलता रहता है। तेज़ वर्षा होती है। जल पहाड़ों के नीचे इकट्ठा होता है तो दर्पण जैसा लगता है। पर्वत मालाओं पर अनगिनत फूल …
NCERT Solutions for Class 10 Hindi chapter 5 पर्वत प्रदेश में पावस Read More »
Page No 22: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − कवि ने कैसी मृत्यु को सुमृत्यु कहा है? Answer: प्रत्येक मनुष्य समयानुसार अवश्य मृत्यु को प्राप्त होता है क्योंकि जीवन नश्वर है। इसलिए मृत्यु से डरना नहीं चाहिए बल्कि जीवन में ऐसे कार्य करने चाहिए जिससे उसे बाद में भी याद रखा जाए। उसकी मृत्यु …
NCERT Solutions for Class 10 Hindi chapter 4 मनुष्यता Read More »
Page No 16: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − छाया भी कब छाया ढूँढ़ने लगती है? Answer: जेठ के महीने में धूप इतनी तेज़ होती है कि सिर पर आने लगती है जिससे छाया छोटी होती जाती है। इसलिए कवि का कहना है कि जेठ की दुपहरी की भीषण गर्मी में छाया भी छाया …
NCERT Solutions for Class 10 Hindi chapter 3 दोहे Read More »
Page No 11: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए– पहले पद में मीरा ने हरि से अपनी पीड़ा हरने की विनती किस प्रकार की है? Answer: मीरा ने हरि से अपनी पीड़ा हरने की विनती की है − प्रभु जिस प्रकार आपने द्रोपदी का वस्त्र बढ़ाकर भरी सभा में उसकी लाज रखी, नरसिंह का …
Page No 6: Question 1: निम्नलिखित प्रश्न का उत्तर दीजिए − मीठी वाणी बोलने से औरों को सुख और अपने तन को शीतलता कैसे प्राप्त होती है? Answer: जब भी हम मीठी वाणी बोलते हैं, तो उसका प्रभाव चमत्कारिक होता है। इससे सुनने वाले की आत्मा तृप्त होती है और मन प्रसन्न होता है। उसके मन …
NCERT Solutions for Class 10 Hindi chapter 1 साखी Read More »
Page No 45: Question 1: लेखक के अनुसार प्रत्यक्ष अनुभव की अपेक्षा अनुभूति उनके लेखन में कहीं अधिक मदद करती है, क्यों? Answer: लेखक के अनुसार प्रत्यक्ष अनुभव वह होता है, जिसे हम घटित होते हुए देखते हैं। इसके माध्यम से हम अनुभूति, संवेदना और कल्पना को सरलता से आत्मसात् कर लेते हैं। यह वास्तव …
NCERT Solutions for Class 10 Hindi chapter 5 मैं क्यों लिखता हूँ? Read More »
Page No 41: Question 1: हमारी आज़ादी की लड़ाई में समाज के उपेक्षित माने जाने वाले वर्ग का योगदान भी कम नहीं रहा है। इस कहानी में ऐसे लोगों के योगदान को लेखक ने किस प्रकार उभारा है? Answer: इस कहानी में लेखक ने टुन्नू व दुलारी जैसे पात्रों के माध्यम से उस वर्ग को …
NCERT Solutions for Class 10 Hindi chapter 4 एही ठैयाँ झुलनी हेरानी हो रामा! Read More »
Page No 29: Question 1: झिलमिलाते सितारों की रोशनी में नहाया गंतोक लेखिका को किस तरह सम्मोहित कर रहा था? Answer: रात के अंधकार में सितारों से नहाया हुआ गंतोक लेखिका को जादुई अहसास करवा रहा था। उसे यह जादू ऐसा सम्मोहित कर रहा था कि मानो उसका आस्तित्व स्थगित सा हो गया हो, सब …
NCERT Solutions for Class 10 Hindi chapter 3 साना-साना हाथ जोड़ि Read More »
Page No 15: Question 1: सरकारी तंत्र में जॉर्ज पंचम की नाक लगाने को लेकर जो चिंता या बदहवासी दिखाई देती है वह उनकी किस मानसिकता को दर्शाती है। Answer: सरकारी तंत्र के आलस्य का यहाँ पर वर्णन किया गया है। सरकारी तंत्र तभी होश में आता है जब बात गंभीरता का रूप धारण कर …
NCERT Solutions for Class 10 Hindi chapter 2 जॉर्ज पंचम की नाक Read More »
Page No 8: Question 1: प्रस्तुत पाठ के आधार पर यह कहा जा सकता है कि बच्चे का अपने पिता से अधिक जुड़ाव था, फिर भी विपदा के समय वह पिता के पास न जाकर माँ की शरण लेता है। आपकी समझ से इसकी क्या वजह हो सकती है? Answer: माता से बच्चे का ममत्व …
NCERT Solutions for Class 10 Hindi chapter 1 माता का आँचल Read More »
Page No 130: Question 1: लेखक की दृष्टि में ‘सभ्यता’ और ‘संस्कृति’ की सही समझ अब तक क्यों नहीं बन पाई है? Answer: लेखक की दृष्टि में दो शब्द सभ्यता और संस्कृति की सही समझ अभी भी नहीं हो पाई है; क्योंकि इनका उपयोग बहुत अधिक होता है और वो भी किसी एक अर्थ में …
NCERT Solutions for Class 10 Hindi chapter 17 भदंत आनंद कौसल्यायन Read More »
Page No 122: Question 1: शहनाई की दुनिया में डुमराँव को क्यों याद किया जाता है? Answer: मशहूर शहनाई वादक “बिस्मिल्ला खाँ” का जन्म डुमराँव गाँव में ही हुआ था। इसके अलावा शहनाई बजाने के लिए रीड का प्रयोग होता है। रीड अंदर से पोली होती है, जिसके सहारे शहनाई को फूँका जाता है। रीड, …
NCERT Solutions for Class 10 Hindi chapter 16 यतींद्र मिश्र Read More »
Page No 109: Question 1: कुछ पुरातन पंथी लोग स्त्रियों की शिक्षा के विरोधी थे। द्विवेदी जी ने क्या-क्या तर्क देकर स्त्री-शिक्षा का समर्थन किया? Answer: कुछ पुरातन पंथी लोग स्त्रियों की शिक्षा के विरोधी थे। द्विवेदी जी ने अनेक तर्कों के द्वारा उनके विचारों का खंडन किया है – (1) प्राचीन काल में भी …
NCERT Solutions for Class 10 Hindi chapter 15 महावीरप्रसाद द्विवेदी Read More »
Page No 100: Question 1: लेखिका के व्यक्तित्व पर किन-किन व्यक्तियों का किस रूप में प्रभाव पड़ा? Answer: लेखिका के व्यक्तित्व पर दो व्यक्तियों का प्रभाव विशेष रूप से देखा जा सकता है। प्रथम उनके पिता तथा द्वितीय उनकी हिंदी अध्यापिका शीला अग्रवाल। लेखिका के पिताजी के कभी अच्छे कभी बुरे व्यवहार ने ुके जीवन …
NCERT Solutions for Class 10 Hindi chapter 14 मन्नू भंडारी Read More »
Page No 88: Question 1: फ़ादर की उपस्थिति देवदार की छाया जैसी क्यों लगती थी? Answer: देवदार का वृक्ष आकार में लंबा-चौड़ा होता है तथा छायादार भी होता है। फ़ादर बुल्के का व्यक्तित्व भी कुछ ऐसा ही है। जीस प्रकार देवदार का वृक्ष वृहदाकार होने के कारण लोगों को छाया देकर शीतलता प्रदान करता है। …
NCERT Solutions for Class 10 Hindi chapter 13 सर्वेश्वर दयाल सक्सेना Read More »
Page No 80: Question 1: लेखक को नवाब साहब के किन हाव-भावों से महसूस हुआ कि वे उनसे बातचीत करने के लिए तनिक भी उत्सुक नहीं हैं? Answer: लेखक के अचानक डिब्बे में कूद पड़ने से नवाब-साहब की आँखों में एकांत चिंतन में विघ्न पड़ जाने का असंतोष दिखाई दिया तथा लेखक के प्रति नवाब …
NCERT Solutions for Class 10 Hindi chapter 12 यशपाल Read More »
Page No 74: Question 1: खेतीबारी से जुड़े गृहस्थ बालगोबिन भगत अपनी किन चारित्रिक विशेषताओं के कारण साधु कहलाते थे? Answer: बालगोबिन भगत एक गृहस्थ थे परन्तु उनमें साधु कहलाने वाले गुण भी थे – (1) कबीर के आर्दशों पर चलते थे, उन्हीं के गीत गाते थे। (2) कभी झूठ नहीं बोलते थे, खरा व्यवहार …
NCERT Solutions for Class 10 Hindi chapter 11 रामवृक्ष बेनीपुरी Read More »
Page No 64: Question 1: सेनानी न होते हुए भी चश्मेवाले को लोग कैप्टन क्यों कहते थे? Answer: चश्मेवाला एक देशभक्त नागरिक था। उसके हृदय में देश के वीर जवानों के प्रति सम्मान था। इसलिए लोग उसे कैप्टन कहते थे। Question 2: हालदार साहब ने ड्राइवर को पहले चौराहे पर गाड़ी रोकने के लिए मना …
NCERT Solutions for Class 10 Hindi chapter 10 स्वयं प्रकाश Read More »
Page No 55: Question 1: संगतकार के माध्यम से कवि किस प्रकार के व्यक्तियों की ओर संकेत करना चाह रहा है? Answer: संगतकार के माध्यम से कवि उस वर्ग की ओर संकेत करना चाहता है जिसके सहयोग के बिना कोई भी व्यक्ति ऊँचाई के शिखर को प्राप्त नहीं कर सकता है। जैसे संगतकार मुख्य गायक …
NCERT Solutions for Class 10 Hindi chapter 9 मंगलेश डबराल Read More »
Page No 51: Question 1: आपके विचार से माँ ने ऐसा क्यों कहा कि लड़की होना पर लड़की जैसी मत दिखाई देना? Answer: इन पंक्तियों में लड़की की कोमलता तथा कमज़ोरी को स्पष्ट किया गया है। लड़की की कोमलता को उसका सबसे बड़ा गुण माना जाता है, परन्तु लड़की की माँ उसे लड़की जैसा दिखने …
NCERT Solutions for Class 10 Hindi chapter 8 ऋतुराज Read More »
Page No 47: Question 1: कवि ने कठिन यथार्थ के पूजन की बात क्यों कही है? Answer: यथार्थ मनुष्य जीवन के संघर्षों का कड़वा सच है। हम यदि जीवन की कठिनाइयों व दु:खों का सामना न कर उनको अनदेखा करने का प्रयास करेंगे तो हम स्वयं किसी मंजिल को प्राप्त नहीं कर सकते। बीते पलों …
NCERT Solutions for Class 10 Hindi chapter 7 गिरिजाकुमार माथुर Read More »
Page No 41: Question 1: बच्चे की दंतुरित मुसकान का कवि के मन पर क्या प्रभाव पड़ता है? Answer: बच्चे की दंतुरित मुसकान का कवि के मन पर अत्यंत गहरा प्रभाव पड़ता है। कवि को बच्चे की मुसकान बहुत मनमोहक लगती है जो मृत शरीर में भी प्राण डाल देती है। Question 2: बच्चे की …
NCERT Solutions for Class 10 Hindi chapter 6 नागार्जुन Read More »
Page No 35: Question 1: कवि बादल से फुहार, रिमझिम या बरसने के स्थान पर ‘गरजने’ के लिए कहता है, क्यों? Answer: कवि ने बादल से फुहार, रिमझिम या बरसने के लिए नहीं कहता बल्कि ‘गरजने’ के लिए कहा है; क्योंकि ‘गरजना’ विद्रोह का प्रतीक है। कवि ने बादल के गरजने के माध्यम से कविता …
NCERT Solutions for Class 10 Hindi chapter 5 सूर्यकांत त्रिपाठी ‘निराला’ Read More »
Page No 29: Question 1: कवि आत्मकथा लिखने से क्यों बचना चाहता है? Answer: आत्मकथा लिखने के लिए अपने मन कि दुर्बलताओं, कमियों का उल्लेख करना पड़ता है। कवि स्वयं को इतना सामान्य मानता है कि आत्मकथा लिखकर वह खुद को विशेष नहीं बनाना चाहता है, कवि अपने व्यक्तिगत अनुभवों को दुनिया के समक्ष व्यक्त …
NCERT Solutions for Class 10 Hindi chapter 4 जयशंकर प्रसाद Read More »
Page No 23: Question 1: कवि ने ‘श्रीबज्रदूलह’ किसके लिए प्रयुक्त किया है और उन्हें ससांर रूपी मंदिर दीपक क्यों कहा है? Answer: देव जी ने ‘श्रीबज्रदूलह’ श्री कृष्ण भगवान के लिए प्रयुक्त किया है। देव जी के अनुसार श्री कृष्ण उस प्रकाशमान दीपक की भाँति हैं जो अपने उजाले से संसार रुपी मंदिर का …
NCERT Solutions for Class 10 Hindi chapter 3 देव Read More »
Page No 14: Question 1: परशुराम के क्रोध करने पर लक्ष्मण ने धनुष के टूट जाने के लिए कौन-कौन से तर्क दिए? Answer: परशुराम के क्रोध करने पर लक्ष्मण ने धनुष के टूट जाने पर निम्नलिखित तर्क दिए – (1) हमें तो यह असाधारण शिव धुनष साधारण धनुष की भाँति लगा। (2) श्री राम को …
NCERT Solutions for Class 10 Hindi chapter 2 तुलसीदास Read More »
Page No 7: Question 1: गोपियों द्वारा उद्धव को भाग्यवान कहने में क्या व्यंग्य निहित है? Answer: गोपियाँ उद्धव को भाग्यवान कहते हुए व्यंग्य कसती है कि श्री कृष्ण के सानिध्य में रहते हुए भी वे श्री कृष्ण के प्रेम से सर्वथा मुक्त रहे। वे कैसे श्री कृष्ण के स्नेह व प्रेम के बंधन में …
NCERT Solutions for Class 10 Hindi chapter 1 सूरदास Read More »
Page No: 63 Read and Find Out 1. Why was the twentieth century called the ‘Era of the Book’? Answer The twentieth century was often called the Era of the Book. In those days, there were books about everything, from ant eaters to Zulus. Books taught people how to, and when to, and where to, …
NCERT Solutions for Class 10 English chapter 10 The Book That Saved the Earth Read More »
Page No: 54 Read and Find Out 1. Why is Bholi’s father worried about her? Answer Bholi’s father was worried about her as she had neither good looks nor intelligence. He did not know how he would find a suitable groom for her. 2. For what unusual reasons is Bholi sent to school? Answer Bholi …
NCERT Solutions for Class 10 English chapter 9 Bholi Read More »
Page No: 47 Read and Find Out 1. Why is the lawyer sent to New Mullion? What does he first think about the place? Answer The lawyer was sent to New Mullion to serve summons on Oliver Lutkins, who was needed as a witness in a law case. He had expected the place to …
NCERT Solutions for Class 10 English chapter 8 The Hack Driver Read More »
Page No: 39 Read and Find Out 1. What kind of a person is Mme Loisel − why is she always unhappy? Answer Mme. loisel is a dreamy woman. She gives much value to her dreams. She over-looks the realities of life. That is why, she is always unhappy because dreams can’t be true …
NCERT Solutions for Class 10 English chapter 7 The Necklace Read More »
Page No: 32 Read and Find Out 1. How did a book become a turning point in Richard Ebright’s life? Answer Richard Ebright was interested in collecting butterflies. By the time he was in the second grade, he had collected all the twenty-five species of butterflies found around his home town. This would have …
NCERT Solutions for Class 10 English chapter 6 The Making of a Scientist Read More »
Page No: 26 Read and Find Out 1. How did the invisible man first become visible? Answer Griffin was completely invisible until he happened to step in some mud, which caused him to leave footprints as he walked. His footprints were seen by two boys, who followed him as long as the prints were …
NCERT Solutions for Class 10 English chapter 5 Footprints without Feet Read More »
Page No: 20 Read and Find Out 1. What does Horace Danby like to collect? Answer Horace Danby liked to collect rare and expensive books. 2. Why does he steal every year? Answer He stole every year so that he could buy the rare and expensive books that he loved to collect. Each year, …
NCERT Solutions for Class 10 English chapter 4 A Question of Trust Read More »
Page No: 14 Read and Find Out 1. How is Ausable different from other secret agents? Answer Ausable was different from other secret agents in more ways than one. He had a small room in the musty corridor of a gloomy French hotel. It was on the sixth and top floor and it was scarcely …
NCERT Solutions for Class 10 English chapter 3 The Midnight Visitor Read More »
Page No: 8 Read and Find Out 1. Who does ‘I’ refer to in this story? Answer In this story, ‘I’ refers to the thief. 2. What is he “a fairly successful hand” at? Answer He was “a fairly successful hand” at stealing and robbing people. 3. What does he get from Anil in …
NCERT Solutions for Class 10 English chapter 2 The Thief’s Story Read More »
Page No: 1 Read and Find Out 1. Why is Mrs Pumphrey worried about Tricki? Answer Mrs Pumphrey was worried and distraught because Tricki would not eat anything. It even refused its favourite dishes. It had bouts of vomiting. It spent all its time lying on the rug and panting. It did not want to …
NCERT Solutions for Class 10 English chapter 1 A Triumph of Surgery Read More »
Page No: 141 Thinking about the Poem 1. What does the young man mean by “great honey-coloured/Ramparts at your ear?” Why does he say that young men are “thrown into despair” by them? Answer The “great honey-coloured/Ramparts at your ear” refers to the beautiful yellow coloured hair that falls at the woman’s ear and …
NCERT Solutions for Class 10 English chapter 22 For Anne Gregory (Poem) Read More »
Page No: 132 Thinking about the Poem 1. Who are the characters in this poem? List them with their pet names. Answer The characters in this poem are Belinda, a little black kitten, a little grey mouse, a little yellow dog, a little pet dragon and a pirate. Character Pet name Kitten Ink Mouse …
NCERT Solutions for Class 10 English chapter 21 The Tale of Custard the Dragon (Poem) Read More »
Page No: 115 Thinking about the Poem 1. (i) What does Sandburg think the fog is like? (ii) How does the fog come? (iii) What does ‘it’ in the third line refer to? (iv) Does the poet actually say that the fog is like a cat? Find three things that tell us that the …
NCERT Solutions for Class 10 English chapter 20 Fog (Poem) Read More »
Page No: 100 Thinking about the Poem 1. (i) Find, in the first stanza, three things that cannot happen in a treeless forest. (ii) What picture do these words create in your mind: “… sun bury its feet in shadow…”? What could the poet mean by the sun’s ‘feet’? Answer (i) The three things …
NCERT Solutions for Class 10 English chapter 19 The Trees (Poem) Read More »
Page No: 84 Thinking about the Poem 1. Notice the use of the word ‘turn’ in the first line, “I think I could turn and live with animals…” What is the poet turning from? Answer The poet is turning away from living with other humans as he finds them complicated and false. He would …
NCERT Solutions for Class 10 English chapter 18 Animals (Poem) Read More »
Page No: 62 Thinking about the Poem 1. How old do you think Amanda is? How do you know this? Answer Amnada is must be about 9−10 years old. She is school going girl. The things that her mother scolds her for are all typical instructions given to a 9 or10 year old girl. 2. …
NCERT Solutions for Class 10 English chapter 17 Amanda! (Poem) Read More »
Page No: 47 Thinking about the Poem In pairs, attempt the following questions 1. Why does the poet say, “I would not intrude on him”? Why doesn’t he offer him money to buy another ball? Answer The poet wants the boy to experience the loss. He should learn that it is the part of life. …
NCERT Solutions for Class 10 English chapter 16 The Ball Poem (Poem) Read More »
Page No: 45 Thinking about the Poem 1. Does ‘dying’ really rhyme with ‘lion’? Can you say it in such a way that it does? Answer No, ‘dying’ does not rhyme with ‘lion’. It is for this reason that the poet has used ‘dyin’ so that when we pronounce it, it rhymes with ‘lion’. …
NCERT Solutions for Class 10 English chapter 15 How to Tell Wild Animals (Poem) Read More »
Page No: 30 Thinking about the Poem 1. Read the poem again, and work in pairs or groups to do the following tasks. (i) Find the words that describe the movements and actions of the tiger in the case and in the wild. Arrange them in two columns. (ii) Find the words that describe the …
NCERT Solutions for Class 10 English chapter 14 A Tiger in the Zoo (Poem) Read More »
Page No: 15 Thinking about the Poem 1. There are many ideas about how the world will ‘end’. Do you think the world will end some day? Have you ever thought what would happen if the sun got so hot that it ‘burst’, or grew colder and colder? Answer Yes I believe that this world …
NCERT Solutions for Class 10 English chapter 13 Fire and Ice (Poem) Read More »
Page No: 14 1. What is a “dust of snow”? What does the poet say has changed his mood? How has the poet’s mood changed? Answer A “dust of snow” means the fine particles of snow. This “dust of snow” changed the poet’s mood. The poet’s mood changed from that of dismay to joy. He was holding …
NCERT Solutions for Class 10 English chapter 12 Dust of Snow (Poem) Read More »
Page No: 157 Thinking about the Play 1. What does Chubukov at first suspect that Lomov has come for? Is he sincere when he later says “And I’ve always loved you, my angel, as if you were my own son”? Find reasons for your answer from the play. Answer At first, Chubukov suspected that …
NCERT Solutions for Class 10 English chapter 11 The Proposal Read More »
Page No: 135 Thinking about the Text 1. When her son dies, Kisa Gotami goes from house to house. What does she ask for? Does she get it? Why not? Answer When Kisa Gotami’s son died, she went from house to house, asking if she could get some medicine that would cure her child. No, …
NCERT Solutions for Class 10 English chapter 10 The Sermon at Benares Read More »
Page No: 119 Oral Comprehension Check 1. What was Valli’s favourite pastime? Answer Valli’s favourite pastime was to stand in the front doorway of her house and watch what was happening in the street outside. 2. What was a source of unending joy for Valli? What was her strongest desire? Answer A source of …
NCERT Solutions for Class 10 English chapter 9 Madam Rides the Bus Read More »
Page No: 106 Oral Comprehension Check 1. What ‘experiment’ did Maxwell think Camusfearna would be suitable for? Answer Maxwell thought that he would keep an otter instead of a dog. Camusfearna, ringed by water a very short distance from its door, would be an eminently suitable spot for the experiment. 2. Why does he …
NCERT Solutions for Class 10 English chapter 8 Mijbil the Otter Read More »
Page No: 86 Oral Comprehension Check 1. What are the elders in Goa nostalgic about? Answer The elders in Goa were nostalgic about the good old Portuguese days, the Portuguese, and their famous loaves of bread. 2. Is bread-making still popular in Goa? How do you know? Answer Yes, bread-making is still popular in Goa. The …
NCERT Solutions for Class 10 English chapter 7 Glimpses of India Read More »
Page No: 74 Oral Comprehension Check 1.What did Mr Petronski’s letter say? Answer Mr Pertronski’s letter said that Wanda would not come to school anymore as they were shifting to another city. He also said that there, nobody would ask them why they had funny names because there were plenty of funny names in the city. …
NCERT Solutions for Class 10 English chapter 6 The Hundred Dresses — || Read More »
Page No: 65 Oral Comprehension Check 1. Where in the classroom does Wanda sit and why? Answer Wanda used to sit in the seat next to the last seat, in the last row, in Room Thirteen. She sat there because her feet were normally caked with dry mud and very dirty. So in order to …
NCERT Solutions for Class 10 English chapter 5 The Hundred Dresses — | Read More »
Page No: 49 Activity 1. Do you keep a diary? Given below under ‘A’ are some terms we use to describe a written record of personal experience. Can you match them with their descriptions under ‘B’? (You may look up the terms in a dictionary if you wish.) A B (i) Journal – A book with …
NCERT Solutions for Class 10 English chapter 4 From the Diary of Anne Frank Read More »
Page No: 36 Thinking about Text 1. Why was the young seagull afraid to fly? Do you think all young birds are afraid to make their first flight, or are some birds more timid than others? Do you think a human baby also finds it a challenge to take its first steps? Answer The young …
NCERT Solutions for Class 10 English chapter 3 Two Stories About Flying Read More »
Page No: 18 Comprehension Check 1. Where did the ceremonies take place? Can you name any public buildings in India that are made of sandstone? Answer The ceremonies took place in the campus of the Union Building of Pretoria. The Parliament House in New Delhi, the Rashtrapati Bhavan in New Delhi, the Supreme Court of …
NCERT Solutions for Class 10 English chapter 2 Long Walk to Freedom Read More »
Page No: 5 Oral Comprehension Check 1. What did Lencho hope for? Answer Lencho hoped for rains as the only thing that his field of ripe corn needed was a shower. 2. Why did Lencho say the raindrops were like ‘new coins’? Answer Lencho’s crops were ready for harvest. As raindrops would have helped in …
NCERT Solutions for Class 10 English chapter 1 A Letter to God Read More »
Page No: 87 Excercises 1. Why are rules and regulations required in the marketplace? Illustrate with a few examples. Answer Rules and regulations are required in the marketplace to protect consumers. Sellers often abdicate responsibility for a low-quality product, cheat in weighing out goods, add extra charges over the retail price, and sell adulterated/ defective goods. …
NCERT solution class 10 Social Science chapter 5 Consumer Rights Read More »
Page No: 72 Excercises 1. What do you understand by globalisation? Explain in your own words. Answer Globalisation means integrating the economy of a country with the economies of other countries under conditions of free flow of trade, capital and movement of persons across borders. It includes (i) Increase in foreign trade (ii) Export and import …
NCERT solution class 10 Social Science chapter 4 Globalization and the Indian Economy Read More »
Page No: 52 Excercises 1. In situations with high risks, credit might create further problems for the borrower. Explain. Answer In situations with high risks, credit might create further problems for the borrower. This is also known as a debt-trap. Taking credit involves an interest rate on the loan and if this is not paid back, …
NCERT solution class 10 Social Science chapter 3 Money and Credit Read More »
Page No: 35 Excercises 1. Fill in the blanks using the correct option given in the bracket: (i) Employment in the service sector _________ increased to the same extent as production. (has / has not) (ii) Workers in the _________ sector do not produce goods. (tertiary / agricultural) (iii) Most of the workers in the …
NCERT solution class 10 Social Science chapter 2 Sectors of the Indian Economy Read More »
Page No: 16 Exercises 1. Development of a country can generally be determined by (i) its per capita income (ii) its average literacy level (iii) health status of its people (iv) all the above ► (iv) all the above 2. Which of the following neighbouring countries has better performance in terms of human development than India? (i) …
NCERT solution class 10 Social Science chapter 1 Development Read More »
Page No: 92 Multiple choice questions (i) Which two of the following extreme locations are connected by the east-west corridor? (a) Mumbai and Nagpur (b) Silcher and Porbandar (c) Mumbai and Kolkata (d) Nagpur and Siligudi ► (b) Silcher and Porbandar (ii) Which mode of transportation reduces trans-shipment losses and delays? (a) Railways (b) Roadways (c) …
NCERT solution class 10 Social Science chapter 7 Life Lines of National Economy Read More »
Page No: 79 Multiple choice questions (i) Which one of the following industries uses limestone as a raw material. (a) Aluminium (b) Cement (c) Sugar (d) Jute ► (b) Cement (ii) Which one of the following agencies markets steel for the public sector plants? (a) HAIL (b) SAIL (c) TATA Steel (d) MNCC ► (b) SAIL (iii) …
NCERT solution class 10 Social Science chapter 6 Manufacturing Industries Read More »
Page No: 63 Multiple choice questions (i) Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material? (a) coal (b) bauxite (c) gold (d) zinc ► (b) bauxite (ii) Koderma, in Jharkhand is the leading producer of which one of the following minerals? (a) bauxite (b) mica …
NCERT solution class 10 Social Science chapter 5 Minerals and Energy Resources Read More »
Page No: 48 Multiple choice questions (i) Which one of the following describes a system of agriculture where a single crop is grown on a large area? (a) Shifting Agriculture (b) Plantation Agriculture (c) Horticulture (d) Intensive Agriculture ► (b) Plantation Agriculture (ii) Which one of the following is a rabi crop? (a) Rice (b) …
NCERT solution class 10 Social Science chapter 4 Agriculture Read More »
Page No: 33 Multiple choice questions (i) Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’. (a) Region with high annual rainfall. (b) Region having high annual rainfall and large population. (c) Region having high annual rainfall but water is highly polluted. …
NCERT solution class 10 Social Science chapter 3 Water Resources Read More »
Page No: 22 Multiple choice questions (i) Which of these statements is not a valid reason for the depletion of flora and fauna? (a) Agricultural expansion (b) Large scale developmental projects (c) Grazing and fuel wood collection (d) Rapid industrialisation and urbanisation ► (c) Grazing and fuel wood collection (ii) Which of the following conservation strategies …
NCERT solution class 10 Social Science chapter 2 Forest and Wildlife Resources Read More »
Page No: 12 Multiple choice questions (i) Which one of the following type of resource is iron ore? (a) Renewable (b) Biotic (c) Flow (d) Non-renewable ► (d) Non-renewable (ii) Under which of the following type of resource can tidal energy be put? (a) Replenishable (b) Human-made (c) Abiotic (d) Non-recyclable ► (a) Replenishable (iii) …
NCERT solution class 10 Social Science chapter 1 Resources and Development Read More »
Page No: 200 Write in Brief 1. Explain the following: (a) Social changes in Britain which led to an increase in women readers (b) What actions of Robinson Crusoe make us see him as a typical coloniser. (c) After 1740, the readership of novels began to include poorer people. (d) Novelists in colonial India wrote for …
NCERT solution class 10 Social Science chapter 8 Novels , Society and History Read More »
Page No: 176 Write in Brief 1.Give reasons for the following: (a) Woodblock print only came to Europe after 1295. (b) Martin Luther was in favour of print and spoke out in praise of it. (c) The Roman Catholic Church began keeping an Index of Prohibited books from the mid-sixteenth century. (d) Gandhi said the …
NCERT solution class 10 Social Science chapter 7 Print Culture and the Modern World Read More »
Page No: 150 Write in Brief 1. Give two reasons why the population of London expanded from the middle of the eighteenth century. Answer → The city of London was a magnet for the migrant populations due to the job opportunities provided by its dockyards and industries. By 1750, one out of every nine people of …
NCERT solution class 10 Social Science chapter 6 Work , Life and Leisure Read More »
Page No: 126 Write in Brief 1. Explain the following: (a) Women workers in Britain attacked the Spinning Jenny. (b) In the seventeenth century merchants from towns in Europe began employing peasants and artisans within the villages. (c) The port of Surat declined by the end of the eighteenth century. (d) The East India Company appointed …
NCERT solution class 10 Social Science chapter 5 The Age of industrialization Read More »
Page No: 102 Write in Brief 1. Give two examples of different types of global exchanges which took place before the seventeenth century, choosing one example from Asia and one from the Americas. Answer Examples of the different types of global exchanges which took place before the seventeenth century: • Example from the Americas: America …
NCERT solution class 10 Social Science chapter 4 The Making of a Global World Read More »
Page No: 74 Write in Brief 1. Explain: (a) Why growth of nationalism in the colonies is linked to an anti-colonial movement. (b) How the First World War helped in the growth of the National Movement in India. (c) Why Indians were outraged by the Rowlatt Act. (d) Why Gandhiji decided to withdraw the Non-Cooperation Movement. …
NCERT solution class 10 Social Science chapter 3 Nationalism in India Read More »
Page No: 52 Write in Brief 1. Write a note on: (a) What was meant by the ‘civilising mission’ of the colonisers: The European colonisers such as Britain and France considered themselves as most advanced civilisation. Thus, according to them, it became the duty of the Europeans to introduce these modern ideas to the colony even …
NCERT solution class 10 Social Science chapter 2 The Nationalist Movement in Indo-China Read More »
Page No: 28Write in Brief1. Write a Note on:a) Giuseppe Mazzinib) Count Camilo de Cavourc) The Greek War of Independenced) The Frankfurt Parliamente) The role of women in nationalist strugglesa) Giuseppe Mazzini: Giuseppe Mazzini was an Italian revolutionary. He was born in Genoa in 1807. He was a member of the secret society of the Carbonari. At the age of 24, he …
NCERT solution class 10 Social Science chapter 1 The Rise of Nationalism in Europe Read More »
Page No: 99 Exercises 1. How does democracy produce an accountable, responsive and legitimate government? Answer → Democracy produces an accountable government: Democracy produces an accountable governments, as the people has the right in choose their representatives through the electoral process. These elected representatives form the government and participate in the decision-making process on behalf of …
NCERT solution class 10 Social Science chapter 7 Outcomes of Democracy Read More »
Page No: 87 Exercises 1. State the various functions political parties perform in a democracy. Answer The various functions political parties perform in a democracy are: → Candidates are put forward by political parties to contest in elections. These candidates may be chosen by the top leaders, or by members of the party. → Parties put forward …
NCERT solution class 10 Social Science chapter 6 Political Parties Read More »
Page No: 69 Exercises 1. In what ways do pressure groups and movements exert influence on politics? Answer Pressure groups and movements exert influence on politics in a variety of ways. → They try to gain public support and sympathy for their cause by carrying out information campaigns, organising meetings, filing petitions, etc. → By organising …
NCERT solution class 10 Social Science chapter 5 Popular Struggles and Movements Read More »
Page No: 55 Exercises 1. Mention different aspects of life in which women are discriminated or disadvantaged in India. Answer In India, women are discriminated and disadvantaged in the following ways: → They are not provided adequate education. Thus, the literacy rate among women is just 54%. → Most of the labour done by them is …
NCERT solution class 10 Social Science chapter 4 Gender , Religion and Caste Read More »
Page No: 37 Exercises 1. Discuss three factors that determine the outcomes of politics of social divisions. Answer Three factors which determine the outcomes of politics of social divisions: → The people’s perception of their identities: When this is singular, the accommodation of other identities becomes difficult. → Representation of a community by political leaders: While representing …
NCERT solution class 10 Social Science chapter 3 Democracy and Diversity Read More »
Page No: 27 Exercises 1. Locate the following States on a blank outline political map of India: Manipur, Sikkim, Chhattisgarh and Goa Answer 2. Identify and shade three federal countries (other than India) on a blank outline political map of the world. Answer 3. Point out one feature in the practice of federalism in India that is similar …
NCERT solution class 10 Social Science chapter 2 Federalism Read More »
Page No: 2 1. I have a simple equation in mind. Sharing power = dividing power = weakening the country. Why do we start by talking of this? Answer Sharing of power does not always mean weakening the country. Sometimes, it may create the problem by delaying decisions which are for the welfare of …
NCERT solution class 10 Social Science chapter 1 Power Sharing Read More »
Page No: 269 1. What changes can you make in your habits to become more environment-friendly? Answer We can be eco-friendly by: → Using the principle of 3R’s i.e. Reduce, Reuse and Recycle. → Putting off unnecessary lights and fans. → Using unleaded petrol in vehicles. → Using local transport like buses or train. 2. …
NCERT solution class 10 science chapter 16 Management of Natural Resources Read More »
Page No: 257 1. Why are some substances biodegradable and some non-biodegradable? Answer Substances are classified as biodegradable and non-biodegradable because some substances can be decomposed by microorganisms and some cannot. Substances that are broken down into simple soluble forms are called biodegradable substances and the substances that are not decomposed by microorganisms into harmless …
NCERT solution class 10 science chapter 15 Our Environment Read More »
Page No: 243 1. What is a good source of energy? Answer A good source of energy fulfils the following criteria: → It produces a lot of heat per unit mass. → It does a huge amount of work per unit mass. → It is easily accessible. → It is easy to store and transport. …
NCERT solution class 10 science chapter 14 Sources of Energy Read More »
Page No: 224 1. Why does a compass needle get deflected when brought near a bar magnet? Answer The needle of a compass is a small magnet. That’s why when a compass needle is brought near a bar magnet, its magnetic field lines interact with that of the bar magnet. Hence, a compass needle gets deflected. …
NCERT solution class 10 science chapter 13 Magnetic Effects of Electric Current Read More »
Page No: 200 1. What does an electric circuit mean? Answer A continuous and closed path of an electric current is called an electric circuit. An electric circuit consists of electric devices, source of electricity and wires that are connected with the help of a switch. 2. Define the unit of current. Answer The unit …
NCERT solution class 10 science chapter 12 Electricity Read More »
Page No: 190 1. What is meant by power of accommodation of the eye? Answer The ability of the eye lens to adjust its focal length, so as to clearly focus rays coming from distant as well a near objects on the retina, is called the power of accommodation of the eye. 2. A person …
NCERT solution class 10 science chapter 11 Human Eye and Colourful World Read More »
Page No: 168 1. Define the principal focus of a concave mirror. Answer Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror. 2. The radius …
NCERT solution class 10 science chapter 10 Light – Reflection and Refraction Read More »
Page No: 143 1. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier? Answer Trait B because in asexual reproduction traits which are present in the previous generation are carried …
NCERT solution class 10 science chapter 9 Heredity and Evolution Read More »
Page No: 128 1. What is the importance of DNA copying in reproduction? Answer DNA is the genetic material present in the cells of all organisms. The genetic information from generation to generation is carried by DNA .It is therefore possible for the organism to produce organism of its own type due to DNA copying …
NCERT solution class 10 science chapter 8 How do Organisms Reproduce Read More »
Page No: 119 1. What is the difference between reflex action and walking? Answer Reflex action is involuntary action which means it is not under control of brain only involves spinal cord, it is rapid, thus gives instant response to the stimulus and not affected by our thinking. But walking is a voluntary action controlled …
NCERT solution class 10 science chapter 7 Control and Coordination Read More »
Page No: 95 1. Why is diffusion insufficient to meet the oxygen requirements of multi-cellular organisms like humans? Answer Unlike the unicellular organisms, the multi-cellular organisms have complex body structures with specialized cells and tissues to perform various necessary functions of the body. Since these cells are not in direct contact with surrounding environment so, …
NCERT solution class 10 science chapter 6 Life Processes Read More »
Page No: 81 1. Did Dobereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out. Answer Yes, Dobereiner’s triads also exist in the columns of Newlands’ Octaves. One such column is Li, K, Na. 2. What were the limitations of Dobereiner’s classification? Answer Limitation of Dobereiner’s classification: All known elements could …
NCERT solution class 10 science chapter 5 Periodic Classification of Elements Read More »
Page No: 61 1. What would be the electron dot structure of carbon dioxide which has the formula CO2? Answer 2. What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form …
NCERT solution class 10 science chapter 4 Carbons and its Compounds Read More »
Page No: 40 1. Give an example of a metal which (i) is a liquid at room temperature. ► Mercury (ii) can be easily cut with a knife. ► Sodium (iii) is the best conductor of heat. ► Silver (iv) is a poor conductor of heat. ► Mercury and Lead 2.Explain the meanings of malleable …
NCERT solution class 10 science chapter 3 Metals and Non-metals Read More »
Page No: 18 1. You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? Answer If the colour of red …
NCERT solution class 10 science chapter 2 Acids , Bases and Salts Read More »
Page No: 6 1. Why should a magnesium ribbon be cleaned before it is burnt in air? Answer Magnesium is a very reactive metal. When stored, it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide is quite stable and prevents further reaction of magnesium with …
NCERT solution class 10 science chapter 1 Chemical Reactions and Equations Read More »
EXERCISE 15.4 Page No 293: Question 1: The following distribution gives the daily income of 50 workers of a factory. Daily income (in Rs) 100 − 120 120 − 140 140 − 160 160 − 180 180 − 200 Number of workers 12 14 8 6 10 Convert the distribution above to a less than …
NCERT solution class 10 chapter 15 Statistics exercise 15.4 mathematics Read More »
EXERCISE 15.3 Page No 287: Question 1: The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them. Monthly consumption (in units) Number of consumers 65 − 85 4 85 − 105 5 105 − 125 13 125 …
NCERT solution class 10 chapter 15 Statistics exercise 15.3 mathematics Read More »
EXERCISE 15.2 Page No 275: Question 1: The following table shows the ages of the patients admitted in a hospital during a year: age (in years) 5 − 15 15 − 25 25 − 35 35 − 45 45 − 55 55 − 65 Number of patients 6 11 21 23 14 5 Find the …
NCERT solution class 10 chapter 15 Statistics exercise 15.2 mathematics Read More »
EXERCISE 15.1 Page No 270: Question 1: A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of plants 0 − …
NCERT solution class 10 chapter 15 Statistics exercise 15.1 mathematics Read More »
EXERCISE 14.2 Question 1: Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (iii) …
NCERT solution class 10 chapter 14 Probability exercise 14.2 mathematics Read More »
EXERCISE 14.1 Page No 308: Question 1: Complete the following statements: (i) Probability of an event E + Probability of the event ‘not E’ = _______. (ii) The probability of an event that cannot happen is _________. Such as event is called _________. (iii) The probability of an event that is certain to happen is …
NCERT solution class 10 chapter 14 Probability exercise 14.1 mathematics Read More »
EXERCISE 13.5 Page No 258: Question 1: A copper wire, 3 mm in diameter, is wound about a cylinder whose length is 12 cm, and diameter 10 cm, so as to cover the curved surface of the cylinder. Find the length and mass of the wire, assuming the density of copper to be 8.88 g …
NCERT solution class 10 chapter 13 Surface Areas and Volumes exercise 13.5 mathematics Read More »
EXERCISE 13.4 Page No 257: Question 1: A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass. Answer: Radius (r1) of Radius (r2) of Capacity of glass = Volume …
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EXERCISE 13.3 Page No 251: Question 1: A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder. Answer: Radius (r1) of hemisphere = 4.2 cm Radius (r2) of cylinder = 6 cm Let the height of the cylinder …
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EXERCISE 13.2 Page No 247: Question 1: A solid is in the shape of a cone standing on a hemisphere with both their radii being equal to 1 cm and the height of the cone is equal to its radius. Find the volume of the solid in terms of π. Answer: Given that, Height (h) …
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EXERCISE 13.1 Page No 244: Question 1: 2 cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboids. Answer: Given that, Volume of cubes = 64 cm3 (Edge) 3 = 64 Edge = 4 cm If cubes are joined end to end, the dimensions of the resulting cuboid will …
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EXERCISE 12.3 Page No 234: Question 1: Find the area of the shaded region in the given figure, if PQ = 24 cm, PR = 7 cm and O is the centre of the circle. Answer: It can be observed that RQ is the diameter of the circle. Therefore, ∠RPQ will be 90º. By applying …
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EXERCISE 12.2 Page No 230: Question 1: Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°. Answer: Let OACB be a sector of the circle making 60° angle at centre O of the circle. Area of sector of angle θ = Area of sector …
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EXERCISE 12.1 Page No 225: Question 1: The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles. Answer: Radius (r1) of 1st circle = 19 cm Radius (r2) or 2nd circle = 9 cm Let …
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EXERCISE 11.2 Page No 221: Question 1: Draw a circle of radius 6 cm. From a point 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths. Give the justification of the construction. Answer: A pair of tangents to the given circle can be constructed as follows. …
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EXERCISE 11.1 Page No 219: Question 1: Draw a line segment of length 7.6 cm and divide it in the ratio 5:8. Measure the two parts. Give the justification of the construction. Answer: A line segment of length 7.6 cm can be divided in the ratio of 5:8 as follows. Step 1 Draw line segment AB …
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EXERCISE 10.2 Page No 213: Question 1: From a point Q, the length of the tangent to a circle is 24 cm and the distance of Q from the centre is 25 cm. The radius of the circle is (A) 7 cm (B) 12 cm (C) 15 cm (D) 24.5 cm Answer: Let O be …
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EXERCISE 10.1 Page No 209: Question 1: How many tangents can a circle have? Answer: A circle can have infinite tangents. Question 2: Fill in the blanks: (i) A tangent to a circle intersects it in _______ point (s). (ii) A line intersecting a circle in two points is called a __________. (iii) A circle …
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EXERCISE 9.1 Page No 203: Question 1: A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of a vertical pole to the ground. Find the height of the pole, if the angle made by the rope with the ground level is 30 °. Answer: It …
EXERCISE 8.4 Page No 193: Question 1: Express the trigonometric ratios sin A, sec A and tan A in terms of cot A. Answer: We know that, will always be positive as we are adding two positive quantities. Therefore, We know that, However, Therefore, Also, Question 2: Write all the other trigonometric ratios of ∠A …
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EXERCISE 8.3 Page No 189: Question 1: Evaluate (I) (II) (III) cos 48° − sin 42° (IV)cosec 31° − sec 59° Answer: (I) (II) (III)cos 48° − sin 42° = cos (90°− 42°) − sin 42° = sin 42° − sin 42° = 0 (IV) cosec 31° − sec 59° = cosec (90° − 59°) …
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EXERCISE 8.2 Page No 187: Question 1: Evaluate the following (i) sin60° cos30° + sin30° cos 60° (ii) 2tan245° + cos230° − sin260° (iii) (iv) (v) Answer: (i) sin60° cos30° + sin30° cos 60° (ii) 2tan245° + cos230° − sin260° (iii) (iv) (v) Question 2: Choose the correct option and justify your choice. (i) (A). …
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EXERCISE 8.1 Page No 181: Question 1: In ΔABC right angled at B, AB = 24 cm, BC = 7 cm. Determine (i) sin A, cos A (ii) sin C, cos C Answer: Applying Pythagoras theorem for ΔABC, we obtain AC2 = AB2 + BC2 = (24 cm)2 + (7 cm)2 = (576 + 49) cm2 = 625 …
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EXERCISE 7.4 Page No 171: Question 1: Determine the ratio in which the line 2x + y − 4 = 0 divides the line segment joining the points A(2, − 2) and B(3, 7) Answer: Let the given line divide the line segment joining the points A(2, −2) and B(3, 7) in a ratio k : 1. Coordinates of the …
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EXERCISE 7.3 Page No 170: Question 1: Find the area of the triangle whose vertices are: (i) (2, 3), (− 1, 0), (2, − 4) (ii) (− 5, − 1), (3, − 5), (5, 2) Answer: (i) Area of a triangle is given by (ii) Question 2: In each of the following find the value …
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EXERCISE 7.2 Page No 167: Question 1: Find the coordinates of the point which divides the join of (− 1, 7) and (4, − 3) in the ratio 2:3. Answer: Let P(x, y) be the required point. Using the section formula, we obtain Therefore, the point is (1, 3). Question 2: Find the coordinates of the …
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EXERCISE 7.1 Page No 161: Question 1: Find the distance between the following pairs of points: (i) (2, 3), (4, 1) (ii) (−5, 7), (−1, 3) (iii) (a, b), (− a, − b) Answer: (i) Distance between the two points is given by (ii) Distance between is given by (iii) Distance between is given by Question 2: Find the distance …
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EXERCISE 6.6 Page No 152: Question 1: In the given figure, PS is the bisector of ∠QPR of ΔPQR. Prove that . Answer: Let us draw a line segment RT parallel to SP which intersects extended line segment QP at point T. Given that, PS is the angle bisector of ∠QPR. ∠QPS = ∠SPR … (1) …
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EXERCISE 6.5 Page No 150: Question 1: Sides of triangles are given below. Determine which of them are right triangles? In case of a right triangle, write the length of its hypotenuse. (i) 7 cm, 24 cm, 25 cm (ii) 3 cm, 8 cm, 6 cm (iii) 50 cm, 80 cm, 100 cm (iv) 13 …
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EXERCISE 6.4 Page No 143: Question 1: Let and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4 cm, find BC. Answer: Video Solution Question 2: Diagonals of a trapezium ABCD with AB || DC intersect each other at the point O. If AB = 2CD, find the ratio of the areas of …
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EXERCISE 6.3 Page No 138: Question 1: State which pairs of triangles in the following figure are similar? Write the similarity criterion used by you for answering the question and also write the pairs of similar triangles in the symbolic form: (i) (ii) (iii) (iv) (v) (vi) Answer: (i) ∠A = ∠P = 60° ∠B …
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EXERCISE 6.2 Page No 128: Question 1: In figure.6.17. (i) and (ii), DE || BC. Find EC in (i) and AD in (ii). (i) (ii) Answer: (i) Let EC = x cm It is given that DE || BC. By using basic proportionality theorem, we obtain (ii) Let AD = x cm It is given that DE || BC. …
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EXERCISE 6.1 Page No 122: Question 1: Fill in the blanks using correct word given in the brackets:− (i) All circles are __________. (congruent, similar) (ii) All squares are __________. (similar, congruent) (iii) All __________ triangles are similar. (isosceles, equilateral) (iv) Two polygons of the same number of sides are similar, if (a) their corresponding …
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EXERCISE 5.4 Page No 115: Question 1: Which term of the A.P. 121, 117, 113 … is its first negative term? [Hint: Find n for an < 0] Answer: Given A.P. is 121, 117, 113 … a = 121 d = 117 − 121 = −4 an = a + (n − 1) d = 121 + (n − 1) (−4) = 121 − 4n + 4 = …
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EXERCISE 5.3 Page No 112: Question 1: Find the sum of the following APs. (i) 2, 7, 12 ,…., to 10 terms. (ii) − 37, − 33, − 29 ,…, to 12 terms (iii) 0.6, 1.7, 2.8 ,…….., to 100 terms (iv) ,………, to 11 terms Answer: (i)2, 7, 12 ,…, to 10 terms For this …
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EXERCISE 5.2 Page No 105: Question 1: Fill in the blanks in the following table, given that a is the first term, d the common difference and an the nth term of the A.P. a d n an I 7 3 8 …… II − 18 ….. 10 0 III ….. − 3 18 − 5 IV − 18.9 2.5 ….. 3.6 V …
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EXERCISE 5.1 Page No 99: Question 1: In which of the following situations, does the list of numbers involved make as arithmetic progression and why? (i) The taxi fare after each km when the fare is Rs 15 for the first km and Rs 8 for each additional km. (ii) The amount of air present …
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EXERCISE 4.4 Question 1: Find the nature of the roots of the following quadratic equations. If the real roots exist, find them; (I) 2×2 −3x + 5 = 0 (II) (III) 2×2 − 6x + 3 = 0 Answer: We know that for a quadratic equation ax2 + bx + c = 0, discriminant is b2 − 4ac. (A) If b2 − 4ac > 0 → two distinct real roots …
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EXERCISE 4.3 Page No 87: Question 1: Find the roots of the following quadratic equations, if they exist, by the method of completing the square: Answer: Question 2: Find the roots of the quadratic equations given in Q.1 above by applying the quadratic formula. Answer: Page No 88: Question 3: Find the roots of the …
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EXERCISE 4.2 Page No 76: Question 1: Find the roots of the following quadratic equations by factorisation: Answer: Roots of this equation are the values for which= 0 ∴ = 0 or = 0 i.e., x = 5 or x = −2 Roots of this equation are the values for which= 0 ∴ = 0 or = 0 i.e., x = −2 or x = Roots of …
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EXERCISE 4.1 Page No 73: Question 1: Check whether the following are quadratic equations: Answer: It is of the form . Hence, the given equation is a quadratic equation. It is of the form . Hence, the given equation is a quadratic equation. It is not of the form . Hence, the given equation is not a quadratic …
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EXERCISE 3.7 Page No 68: Question 1: The ages of two friends Ani and Biju differ by 3 years. Ani’s father Dharam is twice as old as Ani and Biju is twice as old as his sister Cathy. The ages of Cathy and Dharam differs by 30 years. Find the ages of Ani and Biju. …
EXERCISE 3.6 Page No 67: Question 1: Solve the following pairs of equations by reducing them to a pair of linear equations: Answer: Let and, then the equations change as follows. Using cross-multiplication method, we obtain Putting and in the given equations, we obtain Multiplying equation (1) by 3, we obtain 6p + 9q = 6 (3) Adding equation …
EXERCISE 3.5 Page No 62: Question 1: Which of the following pairs of linear equations has unique solution, no solution or infinitely many solutions? In case there is a unique solution, find it by using cross multiplication method. Answer: Therefore, the given sets of lines are parallel to each other. Therefore, they will not intersect …
EXERCISE 3.4 Page No 56: Question 1: Solve the following pair of linear equations by the elimination method and the substitution method: Answer: (i) By elimination method Multiplying equation (1) by 2, we obtain Subtracting equation (2) from equation (3), we obtain Substituting the value in equation (1), we obtain By substitution method From equation …
EXERCISE 3.3 Page No 53: Question 1: Solve the following pair of linear equations by the substitution method. Answer: (i) x + y = 14 (1) x − y = 4 (2) From (1), we obtain x = 14 − y (3) Substituting this value in equation (2), we obtain Substituting this in equation (3), we obtain (ii) From (1), we obtain Substituting this value …
EXERCISE 3.2 Page No 49: Question 1: Form the pair of linear equations in the following problems, and find their solutions graphically. (i) 10 students of Class X took part in a Mathematics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who …
EXERCISE 3.1 Page No 44: Question 1: Aftab tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” (Isn’t this interesting?) Represent this situation algebraically and graphically. Answer: Let the present age of …
EXERCISE 2.4 Question 1: Verify that the numbers given alongside of the cubic polynomials below are their zeroes. Also verify the relationship between the zeroes and the coefficients in each case: Answer: (i) Therefore, , 1, and −2 are the zeroes of the given polynomial. Comparing the given polynomial with , we obtain a = 2, b = 1, c = −5, d = 2 …
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EXERCISE 2.3 Page No 36: Question 1: Divide the polynomial p(x) by the polynomial g(x) and find the quotient and remainder in each of the following: (i) (ii) (iii) Answer: Quotient = x − 3 Remainder = 7x − 9 Quotient = x2 + x − 3 Remainder = 8 Quotient = −x2 − 2 Remainder = −5x +10 Question 2: Check whether the first polynomial …
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EXERCISE 20.3 QUESTION 1 Find the sum of the following geometric progressions: (i) to 7 terms; Sol : Here, a=2 and r=3 = 2787 – 1 = 2186 (ii) to 8 terms Sol : Here, a=1 and r=3 = 3280 (iii) to 9 terms; Sol : Here, a=1 and (iv) to n …
EXERCISE 19.1 QUESTION 1 If the term of a sequence is given by write down its first five terms. Sol : Given : For = 1 For = 2 For = 3 For = 13 For = 21 Thus, the first five terms of the sequence are QUESTION 2 A sequence is defined by …
Exercise 2.2 Question 1 Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients. (i) Sol : or or Therefore , the zeroes of are 4 and -2 . Sum of zeroes Product of zeroes (ii) Sol : Therefore , the zeroes of are and Sum …
Exercise 2.1 Question 1 The graphs of y = p(x) are given in following figure, for some polynomials p(x). Find the number of zeroes of p(x), in each case. (i) Sol : (i) The number of zeroes is 0 as the graph does not cut the x-axis at any point. (ii) Sol …
Exercise 1.1 Exercise 1.2 Exercise 1.3 Exercise 1.4 Exercise 1.4 Question 1 Without actually performing the long division, state whether the following rational numbers will have a terminating decimal expansion or a non-terminating repeating decimal expansion: (i) Sol : The denominator is in the form of Hence, the decimal expansion of is terminating. …
Exercise 1.1 Exercise 1.2 Exercise 1.3 Exercise 1.4 Exercise 1.3 Question 1 Prove that is irrational . Sol : Let is a rational number. Therefore, we can find two integers a , b such that Let a and b have a common factor other than 1 . Then we can divide them by the …
Exercise 1.1 Exercise 1.2 Exercise 1.3 Exercise 1.4 Exercise 1.2 Question 1 Express each number as product of its prime factors: (i) 140 Sol : (ii) 156 Sol : (iii) 3825 Sol : (iv) 5005 Sol : (v) 7429 Sol : Question 2 Find the LCM and HCF of …
Exercise 1.1 Exercise 1.2 Exercise 1.3 Exercise 1.4 Exercise 1.1 Question 1 Use Euclid’s division algorithm to find the HCF of: (i) 135 and 225 Sol : (i) 135 and 225 Since 225 > 135, we apply the division lemma to 225 and 135 to obtain 225 = 135 × 1 + 90 …
Light : is a form of energy which enables us to see objects from which it comes (or from which it reflects.) Luminous objects : Those objects which gives out their own light are called luminous objects. examples are sun , candle, Lamp etc Non-Luminous objects : Those objects which are unable to gives out …
PERIODIC CLASSIFICATION OF ELEMENTS Firstly what is element , an element is a substance containing atoms of only one type e.g Na , Au , Ca , etc . Up till now there are around 118 elements are found . Which is such a large amount and is not possible to learn about each and every …
COAL AND PETROLEUM Firstly what is fuel ,fuel is a material that consist of energy stored in it. Most of the fuel are free carbons (coal , coke ,charcoal) or just carbon compounds (kerosene , LPG , petrol). When carbon in any form is burned in oxygen (of air) and forms carbon-di-oxide also releases heat …
