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?

1 Answer
Oct 10, 2017

BB is 25%25% cheaper than CC

Explanation:

If something costs 70%70% more than it is 1.71.7 times larger so:

A=1.7BA=1.7B

Similarly:

A=1.36CA=1.36C

Putting those equations together:

1.7B=1.36C1.7B=1.36C

Divide both sides by 1.361.36

1.25B=C1.25B=C

So BB is 25%25% cheaper than CC