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

It is currently 29 Jul 2016, 01:49
GMAT Club Tests

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

Question from Challenge 6

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
CEO
CEO
avatar
Joined: 15 Aug 2003
Posts: 3460
Followers: 68

Kudos [?]: 818 [0], given: 781

Question from Challenge 6 [#permalink]

Show Tags

New post 22 Feb 2006, 08:37
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Thanks for answering the last question. Here one of three questions i am posting today. Please explain your answer choice.

What is the least possible value of x?

(1) x^2 - 5x + 5 = 1 - x
(2) x^2 = 4
(A) Statement (1) ALONE is sufficient, but Statement (2) alone is not sufficient.
(B) Statement (2) ALONE is sufficient, but Statement (1) alone is not sufficient.
(C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
(D) EACH statement ALONE is sufficient.
(E) Statements (1) and (2) TOGETHER are NOT sufficient.
Director
Director
avatar
Joined: 17 Dec 2005
Posts: 548
Location: Germany
Followers: 1

Kudos [?]: 32 [0], given: 0

 [#permalink]

Show Tags

New post 22 Feb 2006, 09:53
(1) x^2 - 5x + 5 = 1 - x

(x-2)^2=0

x=2 v x=-2

(2) x^2 = 4
x=2 v x=-2

both statements lead to x=-2 as the least possible value of x
Director
Director
avatar
Joined: 24 Oct 2005
Posts: 575
Location: NYC
Followers: 1

Kudos [?]: 45 [0], given: 0

 [#permalink]

Show Tags

New post 22 Feb 2006, 17:07
I believe D..
It is asking for least possible value.. and least possible value can be -2
_________________

Success is my only option, failure is not -- Eminem

Manager
Manager
avatar
Joined: 15 Aug 2005
Posts: 136
Followers: 2

Kudos [?]: 21 [0], given: 0

 [#permalink]

Show Tags

New post 22 Feb 2006, 18:18
Agree with D.

What is the least possible value of x?

(1) x^2 - 5x + 5 = 1 - x
(2) x^2 = 4

i] x^2 - 5x + 5 = 1 - x
=> (x-2)^2=0
so x=2 ----suff

ii] x^2 = 4
=> (x-2)(x+2)=0
so x=-2,2 since -2 is smaller it is the least value here - suff
Manager
Manager
avatar
Joined: 20 Mar 2005
Posts: 201
Location: Colombia, South America
Followers: 1

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

 [#permalink]

Show Tags

New post 22 Feb 2006, 18:32
good question, is not really testing math but how much you understand the tricks of the GMAT, I'll go with D as well
Senior Manager
Senior Manager
avatar
Joined: 05 Jan 2006
Posts: 382
Followers: 1

Kudos [?]: 75 [0], given: 0

 [#permalink]

Show Tags

New post 22 Feb 2006, 21:25
1) (x-2)^2 = 0 => x= +- 2
2) x^2=4 =>x= +- 2

both are sufficient so answer is D

Chirag
Manager
Manager
avatar
Joined: 20 Feb 2006
Posts: 213
Followers: 1

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

 [#permalink]

Show Tags

New post 22 Feb 2006, 21:39
Guys,
I too agree with D.
But, the least possible value from statement(1) is 2 (and not +/-2).
(x-2)^2 = 0 => x = 2 only.
  [#permalink] 22 Feb 2006, 21:39
Display posts from previous: Sort by

Question from Challenge 6

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| 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®.