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标题: 请教一道数学题~ [打印本页]

作者: fatmoe 时间: 2013-2-28 07:20 标题: 请教一道数学题~

a certain car can currently travel 17 miles per gallon of gasoline. after a tune-up, the car will use 80% as much gasoline as it does now. how many miles will the car be able to travel per gallon of gasoline after the tune-up?

A. 13.6
B. 15
C. 20.4
D. 21.25
E. 23.5

有点弄不清楚题目意思...求教大家，感激不尽~

作者: man855112 时间: 2013-2-28 19:27

选d呀。
耗油量变成原来的80%，距离么就是原来的1.25倍。

作者: fatmoe 时间: 2013-3-1 20:54

明白了~题目理解错误了....那个per gallon of gasoline......

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