It is currently 20 Oct 2017, 17:12

### 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

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

Author Message
Director
Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

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

### Show Tags

11 Aug 2008, 19:00
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

Kudos [?]: 135 [0], given: 7

Director
Joined: 12 Jul 2008
Posts: 514

Kudos [?]: 162 [0], given: 0

Schools: Wharton

### Show Tags

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

Kudos [?]: 162 [0], given: 0

Manager
Joined: 09 Jul 2008
Posts: 111

Kudos [?]: 42 [0], given: 1

Location: Dallas, TX
Schools: McCombs 2011

### Show Tags

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

Kudos [?]: 42 [0], given: 1

Director
Joined: 20 Sep 2006
Posts: 653

Kudos [?]: 135 [0], given: 7

### Show Tags

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

Kudos [?]: 135 [0], given: 7

SVP
Joined: 07 Nov 2007
Posts: 1792

Kudos [?]: 1062 [0], given: 5

Location: New York

### Show Tags

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
_________________

Smiling wins more friends than frowning

Kudos [?]: 1062 [0], given: 5

Manager
Joined: 23 Apr 2008
Posts: 85

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

### Show Tags

11 Aug 2008, 23:50
IMO B

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

in any case |x|=2

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

Re: mod of X   [#permalink] 11 Aug 2008, 23:50
Display posts from previous: Sort by