Question

A store is having a sale to celebrate President’s Day. Every item in the store is advertised as one- fourth off the original price. If an item is marked with a sale price of 90 , what was its original price?

Answer 1

Let x represent the original price. Given that every item in the store is advertised as one- fourth off the original price, it means that the amount taken off the sale price is 1/4 * x = x/4

Since it is removed off the original price, the sale price of an item would be

x - x/4 = 3x/4

If an item is marked with a sale price of 90, it means that

3x/4 = 90

3x = 90 * 4 = 360

x = 360/3

x = 120

The original price is 120