garrison-gud1

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vivek.kapoor83: Legendary Member; Posts: 833; Joined: Mon Aug 04, 2008 1:56 am; Thanked: 13 times

by vivek.kapoor83 » Sun Jan 04, 2009 7:23 am

A garrison of 2200 men is provisioned for 16 weeks at the rate of 45gm per day per man.How many men must leave the garrison so that the provisions may last 24 weeks at 33 gm per day per man.
I have got the answer but took me long. So, looking for better approach

OA is 200

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Source: Beat The GMAT — Problem Solving | Sun Jan 04, 2009 7:23 am

korkun: Junior | Next Rank: 30 Posts; Posts: 14; Joined: Thu Jan 01, 2009 12:04 pm; GMAT Score:740

by korkun » Sun Jan 04, 2009 7:42 am

(24*33) / (16*45) =1.1

2200/1.1 =2000

2200-2000=200

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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 » Sun Jan 04, 2009 11:06 am

2200 * 16*45 = x*24*33

x=2000

Difference = 2200- 2000 = 200

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