A car dealer who gives a customer a 20%discount on the list price of a car still realizes a net profit of 25% of cost. If the dealer's cost is $4800,what is the usual list price of the car?
A. $6000 B.$6180 C.$7200 D. $7500 E.$8001
答案是D。 这个the dealer's cost is $4800中的这个cost指的是什么阿？我好像这题题目没有读明白....
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发表于 2009-10-8 15:34:00
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