Question

Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students?

Answer 1

1:3

Explanation:

We are given that

Total number of students in Mr Kole's class=30

Number of girls=Twice the number of boys.

We have to find the ratio of boys to total students.

Let number of boys in the class=x

Total number of girls in the class=2x

Total students in the class=30

`x+2x=30`

`3x=30`

`x=(30)/(3)`

By using division property of equality

`x=10`

Number of boys in the class=10

Ratio of boys to total students=
`(10)/(30)=(1)/(3)`

Ratio of boys to total students=1:3