Question

A school has the student population 700. The number of girls is 11.11% of

number of boys. How many girls are there in the school

Answer 1

school has the student population 700

number of girls is 11.11% of  number of boys

Let number of boys = x

Number of girls = 11.11/100 × x = x/9

Total students = x + x/9 = 10x/9

So 10x/9 = 700

⇒ 10x = 700×9

⇒ x = 700×9/10

⇒ x = 630

girls = x/9 = 630/9 = 70

There are 70 girls.