Question

The ratio of boys in class A and B is 2:3 there are 21 boys in class B how many boys are there in class A

Answer 1

A : B = 2:3 = 2x:3x

given : B = 21
3x = 21
x = 7
then boys in A is 2x = 2(7) = 14

Answer 2

21/3= 7*2=14

Answer 3

21 / 3 = 7
7 • 2 = 14

14 boys