Question

The ratio of number of boys to that of girls in a class is 4:3. if the number of boys is 40, find the number of girls in the class.​

Answer 1

Let the number of students be x, so that

Number of Boys:

4x = 40

or, x = 40/4 = 10 ... i

Number of Girls:

3x = 3(10) (From eq.i)

3x = 30

The number of boys is 40.

The number of girls is 30.