The least number that must be subtracted from 63520 to make the result a perfect square is -
Options:
A . 30
B . 24
C . 14
D . 16
Answer: Option D 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
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