Problem:
A merchant offers a large group of items at off. Later, the merchant takes off these sale prices and claims that the final price of these items is off the original price. The total discount is
Answer Choices:
A.
B.
C.
D.
E.
Solution:
The first discount means that the customer will pay of the original price. The second discount means a selling price of of the discounted price. Because , the customer pays of the original price and thus receives a discount.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions