Find all School-related info fast with the new School-Specific MBA Forum

It is currently 22 Sep 2014, 04:24

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If -2*x>3*y, is x negative? (1) y>0 (2) 2*x+5*y-20=0

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 28 Aug 2004
Posts: 205
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
If -2*x>3*y, is x negative? (1) y>0 (2) 2*x+5*y-20=0 [#permalink] New post 20 Jul 2005, 06:06
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
If -2*x>3*y, is x negative?

(1) y>0
(2) 2*x+5*y-20=0
Director
Director
avatar
Joined: 03 Nov 2004
Posts: 870
Followers: 1

Kudos [?]: 8 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 Jul 2005, 08:20
I will go with A

x < (-3/2)y. In order to satisfy this condition, x will be less than zero, when y is greater than zero and x may be less than zero or greater than zero, when y is less than zero.


Statement 1: Since y is greater than 0, x should always be less than zero.
Statement 2: 2x + 5y = 20, substituting x < (-3/2)y in this we get different values for y, and so x can be both positive or negative.
Manager
Manager
User avatar
Joined: 21 Jun 2004
Posts: 240
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 Jul 2005, 08:42
A

if y > 0, then right side of A is positive. For the left side to be greater than the right side, it too needs to be positive, which means x needs to be negative.

B is insufficient.
2*x+5*y-20=0
x can be 0, +ve or -ve and we can find a corresponding value for y to fit in the equation .
Senior Manager
Senior Manager
avatar
Joined: 30 May 2005
Posts: 283
Followers: 1

Kudos [?]: 3 [0], given: 0

GMAT Tests User
 [#permalink] New post 20 Jul 2005, 16:07
another A :wink:

ST1 SINCE y>0
and -2*x>3*y
3Y IS APOSITIVE NUMBER
-2x to be greater than a positive number
x has to be negative -2 *-x will give A POSITIVE NUMBER bigger than this other positive number 3y sufficient yes


st2 TWO variables one equation insufficient
Manager
Manager
avatar
Joined: 28 Aug 2004
Posts: 205
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Jul 2005, 01:24
nope... :-D
Director
Director
avatar
Joined: 13 Nov 2003
Posts: 801
Location: BULGARIA
Followers: 1

Kudos [?]: 20 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Jul 2005, 06:18
think it should be D) it is obvious why A is OK,Let's see B) From B) X=(20-5y)/2. When we substitute in the stem then we get that Y>10 or B) by itself is sufficient
Current Student
avatar
Joined: 28 Dec 2004
Posts: 3404
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 160 [0], given: 2

GMAT Tests User
 [#permalink] New post 21 Jul 2005, 07:08
it should be D

1) straight forward...

2) we have 2 equations, 2 unkowns...sufficient....

D it is..
Senior Manager
Senior Manager
avatar
Joined: 17 Apr 2005
Posts: 377
Location: India
Followers: 1

Kudos [?]: 13 [0], given: 0

GMAT Tests User
Re: DS- numbers2 [#permalink] New post 21 Jul 2005, 08:07
Dan wrote:
If -2*x>3*y, is x negative?

(1) y>0
(2) 2*x+5*y-20=0


Picked D.

A) sufficient
B) given 2x + 3y < 0,
consider ,
2*x+5*y-20=0
or 2y - 20 > 0
or y > 10.

HMTG.
Senior Manager
Senior Manager
avatar
Joined: 04 May 2005
Posts: 284
Location: CA, USA
Followers: 1

Kudos [?]: 11 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Jul 2005, 20:01
D for me

with -2*x>3*y
-> y <(-2/3)*x

(1) y>0 => alone is sufficient

(2) 2*x+5*y-20=0
plug in y<(-2/3)*x, we get:

2*x + 5*(-2/3)*x - 20 > 0

therefore x < -15 => alone is sufficient
  [#permalink] 21 Jul 2005, 20:01
    Similar topics Author Replies Last post
Similar
Topics:
1 If -2x>3y , is x negative ? 1. y> 0 2. 2x+ 5y -20 =0 tkarthi4u 11 23 Aug 2009, 00:09
1 If 2x > 3y, is x negative? (1) y > 0 (2) 2x + 5y 20 = albany09 3 09 Oct 2008, 04:57
If -2X > 3Y, is X negative? 1) Y>0 2) 2X + 5Y-20 = 0 johnycute 2 26 Jul 2007, 02:23
if -2x > 3y, is x negative? 1. y > 0 2. 2x + 5y = 20 Himalayan 7 28 May 2007, 21:25
If -2x > 3y, is x negative? (1) y > 0 (2) 2x + 5y - 20 artshep 4 10 Dec 2006, 14:58
Display posts from previous: Sort by

If -2*x>3*y, is x negative? (1) y>0 (2) 2*x+5*y-20=0

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.