Question

Which of the following numbers is not a perfect square?
(A) 1
(B)50
(C)100
(D)400​

Answer 1

1 is not a perfect square

Answer 2

$\huge\tt\colorbox{lightblue}{Answer}$

B) 50

Explaination :

A) 1² = 1

B) 50 is not a perfect square..

As it is lies between two perfect squares 49 and 64.

C) 10² = 100

D) 20² = 400

Therefore Option B) is not a perfect square

Hence Verified ✔️