What is the volume of a certain rectangular solid?
(1) Two adjacent faces of the solid have areas 15
and 24, respectively.
(2) Each of two opposite faces of the solid has
area 40.
这是一道OG12上的题，答案给的是C。但我在读题的时候对条件（2)很是疑惑，既然是'each'两个相对的面积都是40，那有就意味着所有6个面的面积都是40嘛！是不是我在文字的理解上有问题。如果按我这样理解这就要选B了。
