The least number that must be subtracted from 63520 to make the result a perfect square is -

A. 30

B. 24

C. 14

D. 16

Answer: Option D

Solution(By Examveda Team)

According to the question,
As we know that the square of 252 is which that is near to the value of 63520.
Therefore, 63520 - x = 63504
∴ x = 16