Question

Which of the following is/are not a square number?

(i) 48
(ii) 1653
(iii) 121
(iv) 627

• A. (i), (ii), (iii)
• B. (i), (ii), (iv)
• C. (iii)
• D. All of them

Answer 1

The correct option is B

(i), (ii), (iv)

Square numbers never end with 2, 3, 7 or 8.

Also, 121 = ${11}^2$

So, it is a square number.