Question

Answer the following questions.(a) 12 is 15% of what?.(b) 45% of 60 is what number?.

Answer 1

(a) 80

(b) 27

Explanation:

(a)

We must calculate what number 15% is equal to 12, therefore, we do the following operation:

`100\cdot(12)/(15)=80`

(b)

In this case we must calculate 45% of 60, therefore:

`60\cdot(45)/(100)=27`