GMAT prep question

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awilhelm: Master | Next Rank: 500 Posts; Posts: 117; Joined: Fri Oct 17, 2008 7:41 am

by awilhelm » Mon Dec 15, 2008 10:46 am

What fraction of this year's students in a certain college are males?

1) 33% of males and 20% of females at the college transferred from another college

2) Of this year's students, 25% transferred from another college

OA is C. I don't understand why it isn't E.

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Source: Beat The GMAT — Data Sufficiency | Mon Dec 15, 2008 10:46 am

cramya: Legendary Member; Posts: 2467; Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members; Thanked: 331 times

by cramya » Mon Dec 15, 2008 10:53 am

Is the question not
What fraction of this year's transfer students in a certain college are males

.33 M + .20F = .25(M+F)

Then it will be C)

Please try to post the complete question.

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cramya: Legendary Member; Posts: 2467; Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members; Thanked: 331 times

by cramya » Mon Dec 15, 2008 10:54 am

Looks very similar to this one (provided a solution here)

https://www.beatthegmat.com/gmat-prep-pe ... 20937.html

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awilhelm: Master | Next Rank: 500 Posts; Posts: 117; Joined: Fri Oct 17, 2008 7:41 am

by awilhelm » Mon Dec 15, 2008 11:02 am

This is the one, thanks!

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mowie: Junior | Next Rank: 30 Posts; Posts: 28; Joined: Tue Nov 18, 2008 2:23 pm

by mowie » Mon Dec 15, 2008 12:40 pm

Just try to write such information in a table.

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ronniecoleman: Legendary Member; Posts: 546; Joined: Sun Nov 16, 2008 11:00 pm; Location: New Delhi , India; Thanked: 13 times

by ronniecoleman » Tue Dec 16, 2008 12:40 am

What fraction of this year's students in a certain college are males?

1) 33% of males and 20% of females at the college transferred from another college

33/100(x) + 20/100(y) = 25/100( x+y)

8x = 5y

so we can have the fraction ...

C

2) Of this year's students, 25% transferred from another colleg

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