Question

How many numbers lie between the squares of 12 and 13?

(a) 25

(b) 26

(c) 24

(d) 28

I have been asked this question during an interview.

Asked question is from Finding the Square of a Number in portion Squares and Square Roots of Mathematics – Class 8

Answer 1

Right answer is (a) 25

The best explanation: If we need to find the number of non-square numbers, we can use the formula (2n+1).

Here when we apply this formula we get, (2×12+1)=25. Hence the answer would be 25 and the other options would be incorrect.