Question

15 is 10% of what number

Answer 1

15 is just 10% of a number. 10% is 1/10 of a hundred percent, so to find the 100%, multiply  15 by 10 and get: 150

Answer 2

150. It is 150 because you take 150 divided by 100 equal 1.5 and then you times it by ten and it is 15.