Question

Ol

© The ratio of boys to girls in a class is 5:4. There are 36 students in the class. How many
students are girls?​

Answer 1

16

Explanation:

`no \: of \: girls = (4)/(5 + 4) * 36 \\ \\ = (4)/(9) * 36 \\ \\ = 4 * 4 \\ \\ = 16`

Answer 2

Explanation:

let the ratio of boys and girls be 5x and 4x

According to question,

5x+4x = 36

or, 9x= 36

x=4

number of boys = 5x

= 5·4= 20

number of girls = 4x

= 4.4=16

therefore the total no of boys is 20 ans girls is 16