Question

I need help with this question

Answer 1

Problem 1:90;48,42;16,32,28,14

Problem 2:180;60,120;12,48,30,90

Explanation:

Problem 1:

There are 90 pupils at a primary school,so the first number is 90

48 of the pupils are girls, so the number of boys is 90-48=42

`(1)/(3)` of the girls play football, so the number of girls who plays football is
`(1)/(3) *48=16`,the number of girls who does not play football is48-16=32

`(2)/(3)` of the boys play football,so the number of boys who plays football is
`(2)/(3) *42=28`,the number of boys who does not play football is 42-28=14

Problem 2:

There are 180 apples in a grocery store,so the first number is 180

`(1)/(3)`of the apples are red,so the number of red apples is
`180*(1)/(3) =60`

,the number of green apples is 180-60=120.
`(1)/(5)` of the red applesare bruised,
`(1)/(5) *60=12`,so the number of red apples not bruised is 60-12=48.
`(1)/(4)` of the green apples are bruised,
`120*(1)/(4) =30`,so the number of green apples not bruised is 120-30=90.