x & y are positive

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crackgmat007: Legendary Member; Posts: 882; Joined: Fri Feb 20, 2009 2:57 pmFollowed by: 1 member; Thanked: 15 times; GMAT Score:690

by crackgmat007 » Sun May 31, 2009 7:18 pm

Pls explain. Tx.

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Source: Beat The GMAT — Problem Solving | Sun May 31, 2009 7:18 pm

PAB2706: Master | Next Rank: 500 Posts; Posts: 260; Joined: Sun Oct 12, 2008 8:10 pm; Thanked: 4 times

by PAB2706 » Sun May 31, 2009 8:08 pm

take x=y=1 and then check.... i did this bcos nowhere in the question is it given that x!=y

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