Direct proportion versus inverse proportion

There are two proportions

Direct is to divide inverse means to multiply

Proportion or direct proportion example

Apples are directly proportional to money

`8` apples cost `£4.00`

and so `24` apples cost `£12.00`

The length of time to paint a room is inversely proportional to the number of people painting it.

`3` people take `8` hours

`4` people take `6` hours (i.e. less than `8` hours)