Question

Object A costs 70% more than object B and 36% more than object C. By how many percent is object B cheaper and object C?

Answer 1

`B` is `25%` cheaper than `C`

Explanation:

If something costs `70%` more than it is `1.7` times larger so:

`A=1.7B`

Similarly:

`A=1.36C`

Putting those equations together:

`1.7B=1.36C`

Divide both sides by `1.36`

`1.25B=C`

So `B` is `25%` cheaper than `C`