Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 18 May 2013, 19:00
Customize  |  Hide

Search
Register
New posts
Unanswered

What is the value of |x|? (1) x = -|x| (2) x^2 = 4

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Director
Director
Joined: 20 Sep 2006
Posts: 661
Followers: 2

Kudos [?]: 47 [0], given: 7

GMAT Tests User
What is the value of |x|? (1) x = -|x| (2) x^2 = 4 [#permalink] New post 11 Aug 2008, 19:00
What is the value of |x|?
(1) x = -|x|
(2) x^2 = 4
Director
Director
User avatar
Joined: 12 Jul 2008
Posts: 523
Schools: Wharton
Followers: 11

Kudos [?]: 72 [0], given: 0

GMAT Tests User
Re: mod of X [#permalink] New post 11 Aug 2008, 19:13
rao_1857 wrote:
What is the value of |x|?
(1) x = -|x|
(2) x^2 = 4


(1) Insufficient

x can be 0 or any negative number

(2) Insufficient

x = 2 or -2

1 & 2 Sufficient

x = -2
Manager
Manager
Joined: 09 Jul 2008
Posts: 111
Location: Dallas, TX
Schools: McCombs 2011
Followers: 1

Kudos [?]: 5 [0], given: 1

Re: mod of X [#permalink] New post 11 Aug 2008, 19:33
rao_1857 wrote:
What is the value of |x|?
(1) x = -|x|
(2) x^2 = 4


Q stem is asking for |x|. So, B
Director
Director
Joined: 20 Sep 2006
Posts: 661
Followers: 2

Kudos [?]: 47 [0], given: 7

GMAT Tests User
Re: mod of X [#permalink] New post 11 Aug 2008, 19:35
zoinnk wrote:
rao_1857 wrote:
What is the value of |x|?
(1) x = -|x|
(2) x^2 = 4


(1) Insufficient

x can be 0 or any negative number

(2) Insufficient

x = 2 or -2

1 & 2 Sufficient

x = -2



good point, for some reason I ignored the -ve numbers and thought x =0.
thanks for clarifying

FYI ... quest is asking mod X so B itself is suff
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1841
Location: New York
Followers: 20

Kudos [?]: 289 [0], given: 5

GMAT Tests User
Re: mod of X [#permalink] New post 11 Aug 2008, 20:43
rao_1857 wrote:
What is the value of |x|?
(1) x = -|x|
(2) x^2 = 4


1) x=-|x|
---> |x| = -x
we don't the value of X.. it can be any hting..positive or negative values

In sufficient

2) |x|=2
sufficient

B
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Manager
Manager
Joined: 23 Apr 2008
Posts: 90
Followers: 1

Kudos [?]: 5 [0], given: 0

Re: mod of X [#permalink] New post 11 Aug 2008, 23:50
IMO B

x^2=4
which gives
x=+/- 2

in any case |x|=2
Re: mod of X   [#permalink] 11 Aug 2008, 23:50
    Similar topics Author Replies Last post
Similar
Topics:
 Popular new posts What is the value of |x|? (1) x = -|x| (2) x^2 = 4 If rahulraao 10 16 Oct 2005, 01:44
New posts What is the value of x? (1) x^4+x^2+1=(1/x^4+x^2+1) (2) Jamesk486 9 15 May 2007, 19:48
New posts What is the value of 5x2 + 4x 1? (1) x(x + 2)= 0 (2) x= 0 marcodonzelli 1 12 Mar 2008, 13:12
New posts What is the value of 5x^2+4x-1? (1) x(x+2)=0 (2) x=0 tarek99 2 18 Aug 2008, 06:51
New posts what is the value of |x| (1) x=-|x| (2)x^2=4 sacmanitin 6 13 Oct 2009, 00:45
Display posts from previous: Sort by

What is the value of |x|? (1) x = -|x| (2) x^2 = 4

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com