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

 It is currently 06 May 2015, 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

Is |x|< 1? (1) |x + 1| = 2|x - 1| (2) |x - 3| ? 0

Author Message
TAGS:
Senior Manager
Joined: 08 Aug 2005
Posts: 251
Followers: 1

Kudos [?]: 17 [0], given: 0

Is |x|< 1? (1) |x + 1| = 2|x - 1| (2) |x - 3| ? 0 [#permalink]  30 Nov 2005, 23:32
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions
Is |x|< 1?
(1) |x + 1| = 2|x - 1|
(2) |x - 3| ≠ 0
Intern
Joined: 01 Dec 2005
Posts: 3
Followers: 0

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

1. x1 = 3; x2=-3
---> insuff
2. x != 3
---> insuff

---> x = -3 < 1

Last edited by SG1 on 01 Dec 2005, 08:31, edited 2 times in total.
Director
Joined: 24 Oct 2005
Posts: 660
Location: London
Followers: 1

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

Ans = E.
Both statements not sufficient
Senior Manager
Joined: 05 Oct 2005
Posts: 485
Followers: 1

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

Can you please explain why it is E?
VP
Joined: 22 Aug 2005
Posts: 1123
Location: CA
Followers: 1

Kudos [?]: 43 [0], given: 0

C.

S1: x = 3, 1/3; insufficient
S2: any thing except 3; insufficient

together: x = 1/3 < 1
_________________

Whether you think you can or think you can't. You're right! - Henry Ford (1863 - 1947)

SVP
Joined: 16 Oct 2003
Posts: 1815
Followers: 4

Kudos [?]: 50 [0], given: 0

C

1. X = 3 or -3
2. X<>3

Together 1. and 2. gives X = -3, |X| < 1
Senior Manager
Joined: 05 Oct 2005
Posts: 485
Followers: 1

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

Bhai, how does statement 1 allow x to be -3 ?

(1) |x + 1| = 2|x - 1|

|-3+1| <> 2|-3-1|
2 <> 8

The final answer is correct, but 1) allows x to be either 1 or 1/3, as duttsit explained.

Am i missing something?

Duttsit, Is there an intuitive way to derive the 2 possible values for x, or must we do it by plugging numbers? (I was able to get 3, but didn't realize 1/3 satisfied the equation too).

Thanks
Similar topics Replies Last post
Similar
Topics:
Is |x|< 1? (1) |x + 1| = 2|x - 1| (2) |x - 3| 0 A. 2 09 Feb 2008, 20:13
Is |x| < 1 ? (1) |x + 1| = 2|x 1| (2) |x 3| > 0 I have 15 22 Sep 2007, 17:38
Is |x| < 1 (1) |x + 1| = 2|x -1| (2) |x - 3| <> 0 1 05 Aug 2007, 08:06
Is |x|< 1? (1) |x + 1| = 2|x - 1| (2) |x - 3| ? 0 6 15 Aug 2006, 02:28
Is |x| < 1 1) |x+1| = 2 |x-1| 2) |x-3| not equal to 0 If 3 07 Dec 2005, 20:12
Display posts from previous: Sort by