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ds - gmat prep qn

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Intern
Joined: 16 Apr 2006
Posts: 26
ds - gmat prep qn [#permalink]

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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.
VP
Joined: 29 Apr 2003
Posts: 1403

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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
Manager
Joined: 27 Mar 2006
Posts: 136

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25 Apr 2006, 20:31
I agree with E
25 Apr 2006, 20:31
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