# Percentage - Excercise 1 - Q11

## Question

i. The sum of the number of boys and girls in a school is 150. if the number of boys is x, then the number of girls becomes x% of the total number of students. The number of boys is :

• 60
• 70
• 80
• 90
We have : ${(x+\frac{x}{100}\times150)}$= 150
${\frac{5x}{2}}$= 150
x =${ \frac{150\times2}{5}}$ = 60.