Question

12 is 60% of what number?A. 72B. 500C. 20D. 7.2

Answer 1

The number is 20

Explanation:

Is means equals and of means multiply

12 = 60% * N

12 = .60N

Divide each side by .6

12 / .6 = .6N/.6

20 = N

The number is 20

Answer 2

Let's call x to the unknown number.

The 60% of x is computed as follows:

`x\cdot60\text{ \% = x}\cdot(60)/(100)=0.6x`

The 60% of x is equal to 12, then:

`\begin{gathered} 0.6x=12 \\ \text{ Dividing by 0.6 at both sides:} \\ (0.6x)/(0.6)=(12)/(0.6) \\ x=20 \end{gathered}`