45
QuizMultiple Choice

Cumulative Exam — Cumulative exam

Question 45 • Mathematical Models with Applications - MA4072 CR

Suppose that you are given that the sale price of an item is $54.32. This was after applying a store wide 10% discount and then a coupon discounting the item by 5%. Given this information, determine the original price of the sale item. Round your answer to the nearest cent.

Answer
A
$60.36
B
$57.18
C
$63.53
D
$59.32

Explanation

The two discounts are applied one after the other, so the sale price is 90% × 95% = 85.5% of the original price. Divide $54.32 by 0.855 to get about $63.532. Rounded to the nearest cent, the original price is $63.53, choice C.

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