Question

Forty percent of 90 is what number

Answer 1

90 represents the 100%

Let's call x to the number that represents the 40%

To find the 40%, we can use the next proportion:

`(90)/(x)=\frac{100\text{ \%}}{40\text{ \%}}`

Solving for x:

`\begin{gathered} 90\cdot40=100\cdot x \\ (3600)/(100)=x \\ 36=x \end{gathered}`

36 is 40% of 90