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题库 / GMATAdvanced-PS-16
A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in the city. If the car traveled 6 fewer miles per gallon in the city than on the highway, how many miles per gallon did the car travel in the city?
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27
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
没看懂题；原来是说一tank的gasoline可以跑多远；不如设n为每tank多少加仑的gasoline
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