Question

The number of boys and girls in a class are in the ratio 5:4. If the number of boys is 9 more than the number of girls, then number of boys is

Answer 1

let the number of girls be x

Then number of boys = x +9

X +9 / x = 5/4

4x + 36 = 5x

X = 36

Number of girls = 36

Number of boys = 45