Question

Find the following bases.

a. 8% of ? = 20
b. 75% of ? = 30
c. 20% of ? = 45
d. 150% of ? = 36

Answer 1

a. 250

b. 40

c. 225

d. 24

Explanation:

Answer 2

It is pretty easy.

`20 = x * 0.08 \\ x = 20 / 0.08 = 250`

`30 = x * 0.75 \\ x = 30 / 0.75 = 40`

`45 = x * 0.20 \\ x = 45 / 0.20 = 225`

`36 = x * 1.50 \\ x = 36 / 1.5 = 24`