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大家好,我最近在做数学的prep的时候,在132.133题上卡住了,之前也做了不少题,但是没遇到过自己怎么也想不出来的,无奈只有贴上题,请教G友们:
132,if the drama club and music club are combined,what percent of the combined membership will be male?
(1)of the 16 members of the drama club,15 are male.
(2)of the 20 members of the music club,10 are male.
怎么看都觉得应该是C,可是答案是E,12条件合并为什么还不充分,难道是因为members和membership的区别,两个词不一样?可是这样的话还哪里是考数学,明明是考单词,不明白,求教。
133,what is the average height of the n people in a certain group?
(1)the average height of the n/3 tallest people n the group is 6 feet 2.5 inches,and the average height of the rest of people n thegroup is f feet 10 inches.
(2)the sum of the heights of the n people is178 feet 9 inches.
这道题答案给的是A,想破脑袋也想不出来怎么会是A呢,f是一个未知的量,算不出来具体数啊。。。另外,我没有打错,原题就是n the club,n the club是什么玩意儿啊!?
我一直数学不好TAT,所以这两道题在大家看来很简单,还请大家解答的时候写一下思路和步骤,在这里谢谢大家了!
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