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【OG20-P287-388题】
Stores L and M each sell a certain product at a different regular price. If both stores discount their regular price of the product, is the discount price at Store M less than the discount price at Store L ?
(1) At Store L the discount price is 10 percent less than the regular price; at Store M the discount price is 15 percent less than the regular price.
(2) At Store L the discount price is $5 less than the regular store price; at Store M the discount price is $6 less than the regular price.
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(1) alone: L和M的初始价格不确定,所以折扣以后价格不知道谁大;
(2) alone:L和M的初始价格不确定,所以只知道价格降了多少没用;
1+2: 知道折扣率,知道折扣了多少钱,能算出初始价格,就能知道L和M折扣后价格谁更便宜了。
所以C正确
题目讨论 (4条评论)

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冲他丫的
操操操 人家问的是打折之后的价格哪个更低啊
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0 回复 2021-10-17 12:33:00
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贾思敏
L和M的regular price初始价格不一样,只知道折扣或者只知道价格降了多少,是没办法知道打折了多少钱和初始价格,就没办法比较L和M打折后到底谁的价格更低的。 所以条件一和条件二结合,可以求出各自的regular price初始价格,然后再减去条件二给的降了多少钱,就可以算出各自的折扣价格,然后就知道谁的折扣价更低了,完美!
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0 回复 2021-09-25 15:34:25
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夏夏夏筱染
晕。。。这里的discount price是“折扣后的价格”的意思,而不是打了多少折的意思
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0 回复 2019-08-07 11:06:15
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nailuo1
注:初始价格各不相同
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0 回复 2018-08-27 19:32:39