It is currently 23 Mar 2018, 11:54

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# If w + x < 0, is w - y < 0? (1) x + y < 0 (2) y

Author Message
Manager
Joined: 19 May 2008
Posts: 160
Location: Mumbai
If w + x < 0, is w - y < 0? (1) x + y < 0 (2) y [#permalink]

### Show Tags

26 Oct 2008, 15:49
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

If w + x < 0, is w - y < 0?
(1) x + y < 0
(2) y < x < w

Could you tell the answer and the rationale? I will post the OA later.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
VP
Joined: 30 Jun 2008
Posts: 1018

### Show Tags

26 Oct 2008, 19:50
tharunv wrote:
If w + x < 0, is w - y < 0?
(1) x + y < 0
(2) y < x < w

Could you tell the answer and the rationale? I will post the OA later.

from stem : w < -x, is w < y ?

(1) y < -x . This is in sufficient. y may or may not be greater than w.
(2) y < x < w -----> w > y. This is sufficient.

B ??
_________________

"You have to find it. No one else can find it for you." - Bjorn Borg

VP
Joined: 05 Jul 2008
Posts: 1368

### Show Tags

26 Oct 2008, 22:19
can't we subtract two inequalities to arrive at a third inequality? I know we can add up two inequalities to arrive at 3rd one.

(1) w + x < 0
(2) x + y < 0

If we subtract 2 from 1 we do get w-y < 0

How ever the second part says w-y > 0
SVP
Joined: 17 Jun 2008
Posts: 1502

### Show Tags

26 Oct 2008, 22:27
icandy wrote:
can't we subtract two inequalities to arrive at a third inequality? I know we can add up two inequalities to arrive at 3rd one.

(1) w + x < 0
(2) x + y < 0

If we subtract 2 from 1 we do get w-y < 0

How ever the second part says w-y > 0

No, you cannot. Look at the following examples,

-2 < 0
-3 < 0

(-2) - (-3) = 1 >0.

or (-3) - (-2) = -1 < 0
Retired Moderator
Joined: 05 Jul 2006
Posts: 1741

### Show Tags

27 Oct 2008, 07:19
[quote="tharunv"]If w + x < 0, is w - y < 0?
(1) x + y < 0
(2) y < x < w

given

w< -x, is w<y

rom 1

x<-y thus -x> y,..... no correlation ........insuff

from2

y<x<w thus y<w.........suff

B
Manager
Joined: 19 May 2008
Posts: 160
Location: Mumbai

### Show Tags

27 Oct 2008, 11:26
Thanks for the responses. OA is B. 1 is insufficient and 2 is sufficient.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: DS: Maths   [#permalink] 27 Oct 2008, 11:26
Display posts from previous: Sort by