Question

In a sale there is 50% off all prices. A chair costs £45 in the sale. How much was it before the sale?

Answer 1

$90 before the sale. 50% is half. 45x2= 90.

Answer 2

90

Explanation:

Sale price = original price * (1-discount)

We know the sale price and the discount

45 = original price (1-.5)

45 = original price(.5)

Divide each side by .5

45/.5 = original price

90 = original price