请教一题Math Diff

101rose · 发表于 2010-3-3 23:50:09

if the market value of a car was $6000 exactly 3 years ago, what is its current market value?
1 Starting at the time of purchase, the market value of the car depreciated by 20 percent of its purchase price per year.2 The current market value of a car manufactured in the same year is $2400.
答案是E，可是我觉得条件1就足够了，求牛牛确认下。

切尔西 · 发表于 2010-3-3 23:56:45

the market value of a car不等于its purchase price

salasbond · 发表于 2010-3-4 00:43:11

请问楼主，这个题的答案是谁给的？

101rose · 发表于 2010-3-4 09:13:10

请问楼主，这个题的答案是谁给的？

-- by 会员 salasbond (2010/3/4 0:43:11)

这个是CD上某人做preview发现的难题，答案应该也是preview给的。。

101rose · 发表于 2010-3-4 09:15:23

好像有道理，这题还真是ws

请教一题Math Diff

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