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题库 / Prep2007E2-DS-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.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
要谨记陷阱，人家没说是独立的，有可能既是 drama 又是 music 的。这部分没说，算不出来。
这题的意思是说两个俱乐部的成员是有重叠的吗？
同问，感觉题设不太清楚哦
我的理解是因为我们题目中没有提是否有重叠，所以分情况讨论，若没有重叠，那么两个条件就可算，如果有重叠，那么就算不出，无解，而GMAT的DS题要求答案唯一，因而选E
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