DS GMATPrep

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DS GMATPrep

by ukr.net » Fri Dec 14, 2007 10:11 am
If ax+b=0 Is x more than o

1)a+b>0
2)a-b>0

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by TSonam » Fri Dec 14, 2007 10:35 am
Answer should be E.

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Re: DS GMATPrep

by jayhawk2001 » Fri Dec 14, 2007 11:35 am
1 - insufficient.
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}
x can be positive or negative

2 - insufficient
Take {a = 8, b = 4, x = -0.5}, {a = 8, b = -4, x = 0.5}

Together, same story.

Hence E