Answer: 3
Explanation:
Given that 'x' is a positive integer. We are to find the number of different values of 'x', the square root of is a whole number.
First, we have to find those values of 'x' for which the given fraction is a square.
Therefore, for 3 values of 'x', the given fraction is a square. So, for those 3 values of 'x', the square root of the fraction will be a whole number.
Thus, the answer is 3.