Question

Using coupons ,you spend $120 grocery shopping. This is 80% of the total retail price of the groceries. How much would you have spent if you had not used the coupons

Answer 1

80/100=120/x
Or
80% of the total retail price = $120

Cross Multiply
(120(100))/80=x
12,000/80=x
1,200/8=x
150=x

Answer: $150