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value of xyz

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Source: — Data Sufficiency |
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by TSonam » Fri Mar 20, 2009 5:21 am
Answer is: B

statement 2 tells us that z = 0.
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by Tryingmybest » Fri Mar 20, 2009 8:33 am
IMo E

1. y!=6 and x! > 720

Insufficient , we dont know anything about Z and X could take multiple values.

2. z is the least even integer greater than -1

Least even integer greater than -1 is 2

Zero is positive in GMAT world( Please correct me if I am wrong)

Combining we dont have a definite value for X

SO E
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by Mustang » Fri Mar 20, 2009 10:06 am
Tryingmybest wrote:IMo E

1. y!=6 and x! > 720

Insufficient , we dont know anything about Z and X could take multiple values.

2. z is the least even integer greater than -1

Least even integer greater than -1 is 2

Zero is positive in GMAT world( Please correct me if I am wrong)

Combining we dont have a definite value for X

SO E


Zero is neither positive nor negative. zero is definately even everywhere. So I think answer is B
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by lilu » Fri Mar 20, 2009 10:14 am
I agree: 0 is neither positive, nor negative, but is even.
So, statement II tells us that the expression xyz=0

B
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