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ds - gmat prep qn [#permalink] New post 25 Apr 2006, 20:17
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If (x+y)/z = -2, is x postive?

(1) z is negative.
(2) y is positive.
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 [#permalink] New post 25 Apr 2006, 20:24
I wud say E.


If z is -ve, it shows x+y is +ve!


from (2) y is +ve... So what? x+y could be -ve and z +ve or vice versa


from (1) and (2)

its shows x+y is +ve and y is +ve... BUT then y could be 100 and x be -1, to give you x+y that is +ve. OR x=1 and y=2 to generate x+y also +ve!

hence, E
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 [#permalink] New post 25 Apr 2006, 20:31
I agree with E :wink:
  [#permalink] 25 Apr 2006, 20:31
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