Question

If 90 is 80% of a value, what is that value?

Answer 1

So 90 is 4/5 of a number.

4/5n=90

4n=450

n=450/4

n=112.5

Answer 2

90 is 4/5, so 1/5 is 22.5
90+22.5= 112.5
The value is 112.5 :)