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If x + y >0, is x > |y|? confused...

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isisalaska Community Manager Default Avatar
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If x + y >0, is x > |y|? confused...

Post Sun Jan 21, 2007 10:20 am
22. If x + y >0, is x > |y|?
(1) x > y
(2) y < 0

Is the answer a D or an E, I think is an E and here is why:

Let's say y=-5
X is > y but when Y is |5| X will NOT be > than Y
I have been trying to find examples and I still think is E. Help please?

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colinbendell Newbie | Next Rank: 10 Posts Default Avatar
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23 Jan 2007
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Post Tue Jan 23, 2007 9:57 pm
isisalaska wrote:
22. If x + y >0, is x > |y|?
(1) x > y
(2) y < 0
I solved it another way:

From the question: x > -y (transposing from x+y > 0)

With 1) any value of x > y must also be x > -y which is the same thing as saying x > |y| SUFFICIENT

With 2) y is negative and when you plug it into the first equation you will convert the neg value to a positive value [eg: x > -(-5)]. Therefore no matter what y is, x will always be a greater positive number. SUFFICIENT

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Post Tue Jan 23, 2007 11:05 am
Sorry for the messed up formatting--it will all be fixed within 24 hours, thanks!

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colinbendell Newbie | Next Rank: 10 Posts Default Avatar
Joined
23 Jan 2007
Posted:
4 messages
Post Tue Jan 23, 2007 9:57 pm
isisalaska wrote:
22. If x + y >0, is x > |y|?
(1) x > y
(2) y < 0
I solved it another way:

From the question: x > -y (transposing from x+y > 0)

With 1) any value of x > y must also be x > -y which is the same thing as saying x > |y| SUFFICIENT

With 2) y is negative and when you plug it into the first equation you will convert the neg value to a positive value [eg: x > -(-5)]. Therefore no matter what y is, x will always be a greater positive number. SUFFICIENT

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  • Flag

GMAT/MBA Expert

Post Tue Jan 23, 2007 11:05 am
Sorry for the messed up formatting--it will all be fixed within 24 hours, thanks!

_________________
Sorin Istrate - Community Manager

MBA Watch - Your one-stop shop for all MBA program research

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  • Quote
  • Flag

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