Question

Today only, a sofa is being sold at a 72% discount. The sale price is 218.40.

What was the price yesterday?

Answer 1

780

Explanation:

Let x be the original price

x - x*72% is the new price

x - .72x = 218.40

.28x = 218.40

Divide each side by .28

.28x/.28 = 218.40/.28

x =780