Question

at a school

number of boys:number of girls= 11:9
There are 124 more boys than girls.
Work out the total number of students at the school

Answer 1

Total students = 1240

Explanation:

Boys : girls = 11 : 9

Number of boys = 11x

Number of girls = 9x

11x - 9x = 124

2x = 124

x = 124/2

x = 62

Number of boys = 11x = 11 *62 = 682

Number of girls = 9x = 9*62 = 558

Total students = 682 + 558 = 1240