GMAT Prep Question

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winny: Newbie | Next Rank: 10 Posts; Posts: 5; Joined: Thu Feb 24, 2011 1:21 am

by winny » Tue Oct 11, 2011 10:45 am

Can someone please explain this?

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Source: Beat The GMAT — Data Sufficiency | Tue Oct 11, 2011 10:45 am

shankar.ashwin: Legendary Member; Posts: 966; Joined: Sat Jan 02, 2010 8:06 am; Thanked: 230 times; Followed by:21 members

by shankar.ashwin » Tue Oct 11, 2011 10:50 am

Posted a few days back,

10(1.1X) + X = 132000 (10 villages have a pop 10% greater (1.1X) than the 11th town with pop X)

12X = 132000

X = 11000.

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