Question

Find the amount of increase if 180 is increased by 40%.

Answer 1

The amount of increase is 40% of 180. If 180 represents 100%, and x represents 40%, then the next proportion must be satisfied:

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

Solving for x:

`\begin{gathered} 180\cdot40=100\cdot x \\ (7200)/(100)=x \\ 72=x \end{gathered}`

The amount of increase is 72