160

150

132

100

B. 150

Given exp=$\sqrt{(9.5*0.0085*18.9)/(0.0017*1.9*0.021)}$

Now, since the sum of decimal places in the numerator and denominator under the radical sign is the same, we remove the decimal.

Given exp =$\sqrt{(95*85*18900)/(17*19*21)}=\sqrt{5*5*900}=5*30=150.$

6

3

4

8

160

150

132

100

0.03

.003

3

3.0

1.2934..

1.2933..

1.3

1

5

5/4

3/4

2/3

170

170/11

123

123/11

3

6

9

2

32

23

15

16

**By what least number 4320 be multiplied to obtain a number which is a perfect cube?**

** **

32

56

52

50

**Find the least square number which is exactly divisible by 10,12,15 and 18.**

999

900

899

987