Question

660 is 12% of what number?

Answer 1

Let's call our number as x. Since 660 is 12% of x, we know that

`x\cdot(12)/(100)=660`

Solving this equation for x, we have

`\begin{gathered} x\cdot(12)/(100)=660 \\ x\cdot0.12=660 \\ x=(660)/(0.12)=5500 \end{gathered}`

660 is 12% of 5500.