Question

If 75% of a number is 15, find 15% of that number.

Answer 1

Answer: You can use the definition of percentage and the proportions to solve this question. 75% means 75/100, the you want to know which fraction of 15 equals 75/100, which is to solve this proportion: 75/100 = 15/x. Solving for x, x = 15 * 100 / 75 = 20. You can check that the 75% of 20 is equal to 15: 20 * 75% = 20*75/100 = 15. So, the answer is 20.

Explanation:

Answer 2

`0.75x = 15`

`x = (15)/(0.75) = 20`

`0.15(20) = 3`