作者nwair (请叫我~~"海陆宝宝"杯)
看板GMAT
标题[计量] 请教一个题目~~
时间Wed Feb 11 00:36:22 2009
Q~ A distllate flows into an empty 64-gallon drum at
spout A and out of the drum at spout B. If the
rate of flow through A is 2 gallons per hours, how
many gallons per hour must flow out at spout B so that
the drum is full in exactly 96 hours?
A)3/8
B)1/2
C)2/3
D)4/3
E)8/3
这一题我怎麽算~都算不出来.....
不知道是不是我把题目翻译错了说~~
所以请教各位.... 谢谢!!
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