Question

(ii) In class X of a school, the ratio of the number of boys to that of the girls is
4:3. If there were 20 more boys and 12 less girls, then the ratio would have been
2:1. How many students were there in the class?​

Answer 1

Answer:

Let the number of boys be 4x and girls be 3x

Given

3x−12

4x+20

=

1

2

4x+20=6x−24

2x=44

x=22

So number of boys =88

Number of girls =66