求助一道problem solving的题，谢谢~

娜娜的小耳朵 · 发表于 2010-10-7 01:13:21

A merchant purchased a jacket for $60 and then determined a selling price tht equalled thye 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

yzg1236 · 发表于 2010-10-7 02:10:35

成本 60，设卖价P,
根据第二句话 “determined a selling price tht equalled thye purchase price of the jacket plus a markup that was 25 percent of the selling price”

P = 60 + P/4 得 P = 80

然后又 “merchant discounted the selling price by 20 percent and sold the jacket”

最终成交价是（1-20%）P

求 gross profit,

最终成交价 - 成本 = （1-20%）P - 60 = 64 - 60 = 4

娜娜的小耳朵 · 发表于 2010-10-7 16:30:14

成本 60，设卖价P,
根据第二句话 “determined a selling price tht equalled thye purchase price of the jacket plus a markup that was 25 percent of the selling price”

P = 60 + P/4 得 P = 80

-- by 会员 yzg1236 (2010/10/7 2:10:35)

我原来就是这里没理解呢，现在明白了，谢谢啦~

求助一道problem solving的题，谢谢~

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