Question

3/5 of the students in a school are girls if the number of boys are 494, find the number of girls in the school?

Answer 1

Let total number of students in the school be x .
No. of girls = 3x/5
Then no. of boys = x-3x/5
So x-3x/5 = 494
2x/5 = 494
x = 494×5/2
x = 247×5
x = 1235
No. of girls = 3×1235÷5 = 741

Answer 2

let the total number of students be x
3/5 * x = girls
2/5 * x = 494
x = 494 * 5 / 2
x = 347 * 5
x = 1735

girls = 1735 - 494
= 1241