Problem:
A shop advertises that everything is "half price in today's sale." In addition, a coupon gives a discount on sale prices. Using the coupon, the price today represents what percentage discount off the original price?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
The price of an item costing after both discounts are applied is , a discount of off the original price.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions