Question

Which square root is NOT a whole number? A) 144 B) 156 C) 169 D) 196

Answer 1

Let us find square root of each number one by one and see which one is not a perfect square.

A) 144

Square root of 144 is 12.

so it is a perfect square

B) 156

Square root of 156 is 12.5 which is not a whole number.

C) 169

Square root of 169 is 13.

So It is a perfect square.

D) 196

Square root of 196 is 14.

So it is a perfect square.

Answer is option B) 156 whose square root is not a whole number.