Question

15) The ratio of girls to boys is 1:2 and that there are 22 boys, what is the number of girls?

Answer 1

its 11

Explanation:

Answer 2

11

Explanation:

first you sum the ratios

1+2=3

`(2)/(3) * x = 22 \\ 2x = 66 \\ x = 33 \\ this \: mean \: that \: we \: have \: 33 \: \\ students`

since boys are 22 , all we have to do is to subtract 22 from 33 the answer would be 11

therefore we have 11 girls.