Is XY=1? 1.) XYX=X 2.) YXY=Y

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varun289: Master | Next Rank: 500 Posts; Posts: 298; Joined: Sun Jun 03, 2012 6:42 amFollowed by: 7 members; Location: New delhi; Thanked: 10 times; GMAT Score:590

by varun289 » Fri Dec 14, 2012 12:16 am

Is XY=1?
1.) XYX=X
2.) YXY=Y

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Source: Beat The GMAT — Problem Solving | Fri Dec 14, 2012 12:16 am

puneetkhurana2000: Master | Next Rank: 500 Posts; Posts: 131; Joined: Wed Nov 14, 2012 2:01 pmFollowed by: 2 members; Thanked: 39 times

by puneetkhurana2000 » Fri Dec 14, 2012 12:28 am

Statement 1) XYX=X .. X(XY-1) = 0, IMPLYING X=0 OR XY=1. NOT SUFFICIENT AS XY MAY BE 0 OR 1.

Statement 2) YXY=Y .. Y(XY-1) = 0, IMPLYING Y=0 OR XY=1. NOT SUFFICIENT AS XY MAY BE 0 OR 1.

TOGETHER AGAIN -- XY MAY BE 0 OR 1.

SO ANSWER IS E

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