number properties

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sud21: Master | Next Rank: 500 Posts; Posts: 344; Joined: Sat Nov 12, 2011 3:21 amFollowed by: 2 members; Thanked: 1 times

by sud21 » Thu Jan 12, 2012 4:58 am

If x<y<z and x, y, z are integers, which of the following must be greater than y^x+y^z?
1). x ^ (y+z)
2). y^2z

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Source: Beat The GMAT — Data Sufficiency | Thu Jan 12, 2012 4:58 am

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