There are [[1]] non-perfect square numbers between the squares of the numbers n and (n + 1).

There are 2n non perfect square numbers between the squares of the numbers n and (n + 1).

For example, non-perfect square numbers between the squares of the numbers 5 and 6 = 2x5 = 10 (As per theorem)

So, non-perfect square numbers between 25 and 36 = 26, 27, 28, 29, 30, 31, 32, 33, 34, 35

Total number = 10.