Question

What percent of 108 is 81? Use the percent circle.

Answer 1

Let the unknown number be x

x% of 108 = 81

`\begin{gathered} (x)/(100)\text{ }*108\text{ = 81} \\ (108x)/(100)\text{ = 81} \\ 1.08x\text{ = 81} \\ x\text{ =}(81)/(1.08)\text{ =75} \end{gathered}`

Thus 75% of 108 is 81