The ratio between boys and girls in a class is 3 : 1. Find the number of boys in the class is the total number of students is 40.

Question

asked Mar 16, 2022 153k views

1 Answer

Brad Woods · Answer 1 · 2022-03-20T14:27:49+0000

Answer: 30 boys

Explanation:

Boys:Girls

3 : 1

Let no. of girls =x

⇒ no. of boys =3x.

⇒ no. of students in class =4x

= 4/3×3x

= 4 /3 ×no. of boys

40=4/3* no.of boys

40* (3/4)=no.of boys

30=no of boys