Discussion of Question with ID = 025 under Square-and-Cube-Roots

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Question

Each box of a almirah has as many balls as is the total number of boxes in that almirah. If there are 144 balls in all, how many boxes are there?

A

12.

B

9.

C

16.

D

10.

Soln.
Ans: a

Let the number of boxes = n. So balls in one box are also n, and therefore, balls in n boxes = $n^2$. We have been given $n^2 = 144$, which gives n = 12.


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