Square Root and Cube Root with Explanation

Q8. Rakesh plants mangoes in such a manner that there are mango trees in each row as there are as many rows. If he plants 15376 mango trees, how many rows are there?

Answer- Option A

Explanation-

 
 1| 1 53 76 ( 124
  | 1
  | -----
22| 53
  | 44
  | ------
       976
  |    976
  | -------
  |    x
    -------        

Number of rows = 124.

Q9. = ?

A. 1 48	B. 5 16
C. 5 48	D. None of these

Answer- Option B

Explanation-

Given exp. =

15 27

-

5 12

÷

4 9

=

5 16

.

Q10. (2  27 -   75 +   12) is equal to:

Q11. The largest four-digit number which is a perfect cube, is:

Q12. Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square.

Q13. The value of   0.4 is:

 
6 | 0. 40 00 00 ( .63
  | 
  | ---------
123|    40
  |     36
  | ---------
         400
  |      369
  |    -------        

Q14. The least perfect square number divisible by 3, 4, 5, 6 and 8 is: