absolute value

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absolute value

by cartera » Sun Feb 08, 2009 12:05 am
Is X<Y?

1. IXI<IYI
2. Y<0

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by Alara533 » Sun Feb 08, 2009 1:08 am
IMO C.

From 1) we have |X| < |Y|, since we don't know whether x and y are -ve or +ve. This is insufficient.

From 2) Y < 0, without the value of X we can't answer the question.

From both the statements, we have Y is -ve and abs value of X is less than abs value of Y.

X=1 and Y = -2 satisfies this condition.

X = -1 and Y = -2 also satisfies this condition.

Both cases X > Y

Hence sufficient.