Question

Express $3:20$ into percents.

Answer 1

To convert a ratio into percentage,multiply it by $\mathbf{100}$

$3:20$ can be written as $\frac{3}{20}$

$\frac{3}{20}$$=\left(\frac{3}{20}\times 100\right)\%$

$$\begin{gathered} =3\times 5 \\ =15\% \end{gathered}$$

Hence the percentage value of $3:20$ is $15\%$