Question

Hello! Does anyone know what the equation is to solve this? I don't Exactly need the answers, I just need to know how to solve these:
10% of what number is 14?
25% of what number is 21?
15% of what number is 12?
140% of what number is 35?
125% of what number is 25?
Have a good day everyone, thanks!

Answer 1

1) 140
2) 64
3) 80
4) 25
5) 20
hope this helps :)

Answer 2

number x ( 100 / percentage )

see if this works ! :)