Question

What Is $25\%$ of $30\%$ Of $400$?

Answer 1

Find the required value given the percentage

$a\%$ of a number $b$ is computed as;

$a\%\mathrm{of}b=b\times \frac{a}{100}$

We have to find $25\%$ of $30\%$ of $400$.

$$\begin{gathered} \therefore 25\%\mathrm{of}30\%\mathrm{of}400=400\times \frac{25}{100}\times \frac{30}{100} \\ \Rightarrow =400\times \frac{1}{4}\times \frac{3}{10} \\ \Rightarrow =100\times \frac{3}{10} \\ \Rightarrow =30 \end{gathered}$$

Hence, the required value is $30$.