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If v and w are different integers, does v = 0? 1. vw = v^2

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Senior Manager
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If v and w are different integers, does v = 0? 1. vw = v^2 [#permalink] New post 16 Jun 2008, 17:00
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B
C
D
E

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If v and w are different integers, does v = 0?

1. vw = v^2
2. w = 2

Thanks!
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Joined: 30 Apr 2008
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Re: DS: Exponential Equations - Please solve [#permalink] New post 16 Jun 2008, 17:08
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I answer A.

Statement 1) Sufficient. The only way v and w can be different integers and vw = v^2 is if v = 0, otherwise, v and w MUST be the same thing.

Statement 2) In sufficient. This says nothing about v so it is insufficient. We must be told something about v otherwise there is not enough information.

vksunder wrote:
If v and w are different integers, does v = 0?

1. vw = v^2
2. w = 2

Thanks!

_________________

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J Allen Morris
**I'm pretty sure I'm right, but then again, I'm just a guy with his head up his a$$.

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Re: DS: Exponential Equations - Please solve [#permalink] New post 16 Jun 2008, 17:56
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Answer should be A

Statement 1 : For vw= v^2 v can be zero or v=w . But v=w not possible as v and w are different integers , therefore v=0

Statement 2 : Insuff as no infor about v
Re: DS: Exponential Equations - Please solve   [#permalink] 16 Jun 2008, 17:56
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If v and w are different integers, does v = 0? 1. vw = v^2

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