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
Is XY=1? 1.) XYX=X 2.) YXY=Y
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Source: Beat The GMAT — Problem Solving |
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puneetkhurana2000
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