实在想不通。。。
A cubical tank is filled with water to a level of 2 feet. If the water in the tank occupies 18 cubic feet, to what fraction of its capacity is the tank filled with water?
A 1/9
B 2/9
C 1/3
D 1/2
E 2/3
答案是E。谢谢。
恩.. 立方体水箱里面水深2尺,水一共有18立方尺,说明水箱底面积是9平方尺
由于是立方体,所以水箱边长为3尺 体积为27立方尺
所以水占里面的18/27=2/3
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