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Is x+2y > 0 1. x/(x+2y) > 0 2. y/(x+2y) > 0

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Is x+2y > 0 1. x/(x+2y) > 0 2. y/(x+2y) > 0 [#permalink] New post 30 Mar 2004, 16:25
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Is x+2y > 0

1. x/(x+2y) > 0
2. y/(x+2y) > 0
Senior Manager
Senior Manager
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Joined: 23 Sep 2003
Posts: 295
Location: US
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Kudos [?]: 0 [0], given: 0

 [#permalink] New post 31 Mar 2004, 07:04
E.

Is x+2y>0?

1) x/(x+2y)> 0 Insufficient
If x is negative and x+2y is negative, then the equation is positive but x+2y < 0; If x is positive and x+2y is positive, then x+2y>0. We do not know the value of y so we have no way of knowing whether x+2y is negative or positive.

2) Same explanation.
  [#permalink] 31 Mar 2004, 07:04
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Is x+2y > 0 1. x/(x+2y) > 0 2. y/(x+2y) > 0

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