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gmattester: Master | Next Rank: 500 Posts; Posts: 172; Joined: Wed Oct 31, 2007 11:21 am; Thanked: 1 times

by gmattester » Mon Aug 25, 2008 8:47 am

According to me answer to this question should be A but OA is C.
Can someone tell me why 1 is insufficient

Thanks.....

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Source: Beat The GMAT — Data Sufficiency | Mon Aug 25, 2008 8:47 am

pepeprepa: Legendary Member; Posts: 661; Joined: Tue Jul 08, 2008 12:58 pm; Location: France; Thanked: 48 times

by pepeprepa » Mon Aug 25, 2008 8:55 am

Because you missed that:
3*(2+1)
5*(2+1)
7*(2+1)

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gmattester: Master | Next Rank: 500 Posts; Posts: 172; Joined: Wed Oct 31, 2007 11:21 am; Thanked: 1 times

by gmattester » Mon Aug 25, 2008 9:04 am

pepeprepa wrote:Because you missed that:
3*(2+1)
5*(2+1)
7*(2+1)

Thanks

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