Question

Which of the following cannot be a square of the number of with 4 at it’s one’s place?

(a) 4

(b) 196

(c) 36

(d) 144

This question was posed to me in an interview for internship.

My question comes from Properties of Squares in portion Squares and Square Roots of Mathematics – Class 8

Answer 1

Right answer is (b) 196

Explanation: We know that the number which has 4 in it’s one’s place has it’s ending with 6 in it’s one’s place. Here 36 cannot be the correct answer since it is square of 6. Here the correct answer is 196 as it is square of 14.