Question

In a class of 30 students, 60% are girls. Find the number of girls.

Answer 1

Given:

Total students = 30

Percentage of girls = 60%

To find:

Number of girls.

Now,

$percentage \: of \: girls = \frac{number \: of \: girls}{total \: number \: of \: students} \times 100 \\ \\ 60 = \frac{number \: of \: girls}{30} \times 100 \\ \\ \frac{60 \times 30}{100} = number \: of \: girls \\ \\ 18 = number \: of \: girls \\ \\ number \: of \: girls \: = 18$