Question

The ratio of boys and girlsin a class is 5:3 if there are 40 boys find the number of girls

Answer 1

Answer: 24

Step-by-step explanation:

Let the boys be 5x and girls be 3x.

Given no.of boys = 4o

5x = 40

x=8

No.of girls = 3x =3×8=24

Answer 2

Given :

The ratio of boys and girls in a class = 5 : 3

Number of boys = 40

To Find :

The number of girls in the class.

Solution :

The ratio of boys and girls in a class is 5 : 3

The total ratio = 5 + 3 = 8

Number of boys = 40

Let the rational between the number of boys and girls be 'n'

Thus boys and girls are = 5n + 3n  

The number of boys = 5n = 5 × 8 = 40

So the number of girls = 3n = 3 × 8 = 24

There are 24 girls in the class.