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Source: — Data Sufficiency |

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by Anurag@Gurome » Thu Jun 16, 2011 1:27 am
divya23 wrote:if w and v are diff integers ,does v = 0 ?
1.vw = v^2
2.w= 2
Statement 1: vw = v² --> (vw - v²) = v(w - v) = 0
Hence, either v = 0 or w = v
As w and v are different integers, v ≠ w
Hence, v = 0

Sufficient

Statement 2: No information regarding v

Not sufficient

The correct answer is A.
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by vikram4689 » Thu Jun 16, 2011 1:35 am
if v not = w then divide given eqn by v
vw = v^2
=> w = v ..but hey are NOT equal so v=0 SUFF.

w=2 does not tell anything
IMO A
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