求PREP-DS-2-132 解

jesuisdesole · 发表于 2008-8-16 20:15:00

132.
14175-!-item-!-187;#058&010326

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.

答案: E

没明白这个combined是怎么个意思，请教思路,谢谢

xinxian · 发表于 2008-8-17 02:19:00

Statement 1:

15 male out of 16 in drama don't know about music club---Insufficient

Statement 2:

10 are male out of 20 ibn music
club don't know about drama
club, so insufficient

Combining both,

if no members are common, then
25/36 * 100 = 70%(approx) so Ans (C)
But if some members are common , then
ans should be (E)

jesuisdesole · 发表于 2008-8-17 23:35:00

以下是引用xinxian在2008-8-17 2:19:00的发言：

Statement 1:

15 male out of 16 in drama don't know about music club---Insufficient

Statement 2:

10 are male out of 20 ibn music
club don't know about drama
club, so insufficient

Combining both,

if no members are common, then
25/36 * 100 = 70%(approx) so Ans (C)
But if some members are common , then
ans should be (E)

if no members are common....

就是说这个COMBINE要理解成交集?

求PREP-DS-2-132 解

求PREP-DS-2-132 解

所属分类: GMAT考试

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