题目信息
A merchant purchased a jacket for $60 and then determined a selling price that equaled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gross profit on this sale?
A:$0
B:$3
C:$4
D:$12
E:$15
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正确答案：
C:$4
Algebra Percents
The purchase price, in dollars, of the jacket was 60. If S represents the selling price, in dollars, then S = 60 + 0.25S, from which S = 80. During the sale, the discounted selling price, in dollars, was 0.8(80) = 64, so the merchant's gross profit, in dollars, was 64 − 60 = 4.
The correct answer is C.
Tip Read carefully. Usually, markup is a percent of the purchase price, but in this problem, it is a percent of the selling price.
The purchase price, in dollars, of the jacket was 60. If S represents the selling price, in dollars, then S = 60 + 0.25S, from which S = 80. During the sale, the discounted selling price, in dollars, was 0.8(80) = 64, so the merchant's gross profit, in dollars, was 64 − 60 = 4.
The correct answer is C.
Tip Read carefully. Usually, markup is a percent of the purchase price, but in this problem, it is a percent of the selling price.
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