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integer y

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Source: — Data Sufficiency |
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Re: integer y

by logitech » Fri Jan 09, 2009 12:57 pm
japan1453 wrote:Is integer y > 0?

(1) –(2 + y) > 0

Multiply both side with -1

2+y < 0


y< -2

Since y is less than -2 it can not be greater than 0.

SUF

(Remember in yes and no DS question both answers are sufficient)

(2) (2 + y)2 > 0
Divide by 2

2+y>0

y>-2

Insuf

Y can be -1 or 847

Choose A
LGTCH
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by japan1453 » Fri Jan 09, 2009 1:04 pm
thanks logitech
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by logitech » Fri Jan 09, 2009 1:08 pm
your welcome
LGTCH
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