Question

95% of what number is 38?

Answer 1

We know that 38 is equivalen to the 95 % of some x number. So, we can state the folowing rule of three:

`\begin{gathered} 38\text{ ------ 95 \%} \\ x\text{ -------100 \%} \end{gathered}`

By cross-multiplying these numbers, we have

`(95\text{ \%)}* x=38*\text{ 100\%}`

Then, by dividing both sides by 95 %, we get

`\begin{gathered} x=\frac{38*\text{ 100\%}}{\text{ 95 \%}} \\ x=40 \end{gathered}`

Therefore, the number is: 40