A-A+
A consumer insulates a house with material bou
问题详情
A consumer insulates a house with material bought at 20 percent off the list price of $370. If the consumer also receives a rebate of $25 from the manufacturer of the material, how much does the material cost the consumer？
A．$238
B．$240
C．$263
D．$271
E．$325请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：一名装修房子的消费者以20％的折扣买了标价为370美元的材料，若该消费者同时还从材料制造商那里获得$25回扣，问这个消费者买材料花了多少钱?解：本题的正确答案是(D)。“20％offthelistingprice”指打了20％的折，等同于atadiscountof20％，由题意可得该消费者买材料花的钱为：370×(1-20％)-25=271
