Question

Mr. J paid $15 for an item on sale. It was a great deal as it was only 30% of the original price. What was the original price of the item?

Answer 1

`$50` was the original price.

Explanation:

The best way to approach this type of question is as a direct proportion. You know that `$15` represents `30%` and need to know what value was the `100%`

`$/% = 15/30 = x/100" "larr` cross-multiply

`30x = 15xx100`

`x = (15xx100)/30`

`x = 50`