Question

Terry sees an offer about a refurbished phone which is 35% off the original price the new price is £78 how much was the phone before the discounted price

Answer 1

part/whole=0.65

78/whole=0.65

whole =78/0.65 =120 £

Answer 2

The price before discount would be $120

Explanation:

The actual price of the phone is 100%-35% = 65% of the original price of the phone.

So by rule of three

If 65% of the price is $78, the total price of the phone would be:

`Total price = (74)/(0,65) \\\\Total price = 120`