1) 50 is 8% of what number?
2) 20% of what number is 15
3) 12 is 4% of what number
4) 80% of what number is 5?
5) 7 is 70% of what number?
6) 6 is 75% of what number?
7) 8 is 20% is what number?
8) 2.25 is 9% of what number?
9) 75% of what number is 1/2?
10) 49 is 87.5% of what number?
with sulotion​