In order to find the price paid, we first must find what 60% of it is. In order to do this, we divide 75 by 100 and then multiply it by 60.
(75/100) x 60 = 45
So now that we know 60% of 75 is 45, we just subtract 45 from 75.
75 - 45 = 30
Therefore, Ali paid $30 for the item.