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S.chand books class 8 maths solution chapter 29 Graphical Representation of Data exercise 29 C

EXERCISE 29 C
Draw pie charts to represent the following information, working out the angles first.
1.The number of books lent out by a school library each day is shown in the following table.

<div style=”overflow: auto;”>
<table style=”border-collapse: collapse;” border=”1″>
<tr><th>Day</th><td>Monday</td><td>Tuesday</td><td>Wednesday</td><td>Thrusday</td><td>Friday</td></tr>
<tr><th>Number of books lent</th><td>10</td><td>25</td><td>33</td><td>16</td><td>6</td></tr>
</table>
</div>
2.The number of students in a hostel speaking different languages is given below. Present the data in a pie chart.
<div style=”overflow: auto;”>
<table style=”border-collapse: collapse;” border=”1″>
<tr><th>Language</th><td>Hindi</td><td>English</td><td>Marathi</td><td>Tamil</td><td>Bengali</td><td>Total</td></tr>
<tr><th>Number of students</th><td>40</td><td>10</td><td>8</td><td>8</td><td>6</td><td>72</td></tr>
</table>
</div>

3.The following table shows Mr Kumar’s monthly expenditure.
<div style=”overflow: auto;”>
<table style=”border-collapse: collapse;” border=”1″>
<tr><td>Food</td><td>Rent</td><td>Clothing</td><td>Transport</td><td>Education</td></tr>
<tr><td>30%</td><td>15%</td><td>10%</td><td>20%</td><td>25%</td></tr>
</table>
</div>
Present the data using a pie-chart

4.A pie diagram of the marks secured by a student in Maths, English, Physics and Chemistry is shown here. Read the graph and find the marks in Chemistry secured by the student
[Hint : Let the angle of the sector representing the marks in Chemistry be x in degrees.
Then,.. 100° + 75° + 100° + x = 360°. Find x and hence the marks]

5.A pie chart representing the population of four cities is shown here. Read the pie chart and f‌ind the population of the city D.
[Hint: Similar to Q.4]

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