Question

There are 4680 gym members in total. 3/8 are aged 25-59 years, 2/5 are over 60 years and the remainder are under 25 years. How many members are under 25 years?

Answer 1

9/40 of the members are under 25 years.

Answer 2

1053 members under 25 years.

Explanation:

We have been given the total number of students: 4680

`(3)/(8)\text{aged}25-59`

That means in 25-59 there will be:

`4680\cdot(3)/(8)=1755`

And
`(2)/(5)\text{are over}60\text{years}`

That means over 60 years will be:

`4680\cdot(2)/(5)=1872`

That means from total 1755+1872=3627

That means 4680-3627=1053 are remaining

And hence, 1053 members are under 25 years.