Question

Question #2f059

Answer 1

He is thinking of the number `25`.

Explanation:

Think about the first couple of squares. It should be in here as `20` to `30` is not high.

`1^2=1`

`2^2=4`

`3^2=9`

`4^2=16`

`5^2=25`

`25` is `5^2` and also fits in between `20` and `30`.

`25` is the answer. Have a nice day!