Let us assume the number of free throws attempted this season = x
Number of free throws made = 93
Percentage of free throws made = 75%
Then
(75/100) * x = 93
3x/4 = 93
3x = 93 * 4
x = (93 * 4)/3
= 31 * 4
= 124
So the total number of free throws attempted is 124. I hope the procedure is clear enough for you to understand. You can always attempt similar type of problems on your own using the method described.