**Exercise 3 (B)**

#### Question 1

**Find the square root of each of the following numbers by division method.**

**(i) 3249**

**(ii) 6889**

**(iii) 15129**

**(iv) 75625**

**(v) 166464**

**(vi) 9548100**

Sol :

**(viii) **

**(ix) **

Sol :

Sol :

#### Question 2

**Find the perimeter of a square field whose area is 13689 m ^{2}**

Sol :

#### Question 3

**What should be subtracted from 18.246 to get a perfect square number ? What is this perfect square number ? Also, find its square root.**

Sol :

#### Question 4

**What should be added to 14841 to make the sum a perfect square ?**

Sol :

#### Question 5

**Find the least number which must be subtracted from 63520 to make it a perfect square.**

Sol :

#### Question 6

**Find:**

**(i) Find the least number of six digits which is a perfect square.**

**(ii) Find the greatest number of six digits which is a perfect square.**

Sol :

#### Question 7

**A gardener arranges his plants in rows to form a perfect square. He finds that in doing so, 25 plants are left out.If the total number of plants be 2234 , find the numbers of plants in each row.**

Sol :

#### Question 8

**There are 800 children in a school. For a PT drill they have to stand in a square formation, such that the number of rows is equal to number of columns. Find the greatest number of children needed to complete the formation.**

Sol :

MCQS

**9.Find the correct one:**

**The square root of 1585081 is**

**(a) 1259**

**(b) 2159**

**(c) 1251**

**(d) 1291**

**10.Find the value of **

****

**(a) 1602205**

**(b) 16.2402**

**(c) 17.2205**

**(d) 155.2205**