Question

A store is having a sale where school supplies are 30% off their original price. A backpack is on sale for $11.20. What was the original price of the backpack?

Answer 1

Original price is `$16`.

Explanation:

Since there is a `30%` depreciation, that means that `$11.20` is `100%-30%=70%` of the original price.

`100%` version of the value would be the original one, therefore, the original price would be `100/70` times more than the sale price.
`11.20 xx 100/70 = 16`