Question

Which of the following is not a perfect square number?

• A. $16$
• B. $25$
• C. $37$
• D. None of the above

Answer 1

The correct option is C $37$

Here, $16$ can be written as,

$16=4\times 4$

$=4^2$

And, $25$ can be written as,

$25=5\times 5$

$=5^2$

But $37$ is a prime number and it cannot be written as a square of any whole number.

Therefore, option $C$ is the correct answer.