Question

In a city, $30\%$ are females, $40\%$ are males and the remaining are children. What percent are children?

Answer 1

Find the required percentage:

Let the total percentage of people $=100\%$.

Sum of percentage of males and females $=30+40$

$=70\%$.

Percentage of children $=$Total percentage $-$Sum of the percentage of males and females

$$\begin{gathered} =100-70 \\ =30\% \end{gathered}$$

Hence, the percentage of the children is $30\%$.