GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 24 Jun 2018, 17:38

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Is |x-1|< 1 ? (1) (x-1)^2 <= 1 (2) x^2 - 1 > 0

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 01 Apr 2006
Posts: 177
Location: Toronto, Canada
Is |x-1|< 1 ? (1) (x-1)^2 <= 1 (2) x^2 - 1 > 0 [#permalink]

Show Tags

New post 11 Sep 2008, 03:58
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (03:57) correct 0% (00:00) wrong based on 5 sessions

HideShow timer Statistics

Is |x-1| 0

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
SVP
SVP
User avatar
Joined: 29 Aug 2007
Posts: 2427
Re: Inequality DS [#permalink]

Show Tags

New post 11 Sep 2008, 08:41
jjhko wrote:
Is |x-1|< 1 ?

(1) (x-1)^2 <= 1
(2) x^2 - 1 > 0


1: -2 < x < 2. nsf
2: x < -1 or x > 1. x cannot be 1. nsf.

togather also insuff...

so //E//
_________________

Verbal: http://gmatclub.com/forum/new-to-the-verbal-forum-please-read-this-first-77546.html
Math: http://gmatclub.com/forum/new-to-the-math-forum-please-read-this-first-77764.html
Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Current Student
avatar
Joined: 28 Dec 2004
Posts: 3292
Location: New York City
Schools: Wharton'11 HBS'12
Re: Inequality DS [#permalink]

Show Tags

New post 11 Sep 2008, 09:15
Is |x-1|< 1 ?

(1) (x-1)^2 <= 1

(2) x^2 - 1 > 0

1) x=1.5, but then |x-1|<1; if x=2 the |x-1|=1 so Insuff

2) x^2 >1
which means x<-1 or x>1

if x<0 then |x-1|>1 if x>1 could be 1.5 then |x-1|<1 so insuff

1 and 2 together; if x>1 say x=1.5 then |x-1|<1 if x=2 then |x-1|>1

E it is
VP
VP
avatar
Joined: 17 Jun 2008
Posts: 1288
Re: Inequality DS [#permalink]

Show Tags

New post 11 Sep 2008, 10:26
fresinha12 wrote:
Is |x-1|< 1 ?

(1) (x-1)^2 <= 1

(2) x^2 - 1 > 0

1) x=1.5, but then |x-1|<1; if x=2 the |x-1|=1 so Insuff

2) x^2 >1
which means x<-1 or x>1

if x<0 then |x-1|>1 if x>1 could be 1.5 then |x-1|<1 so insuff

1 and 2 together; if x>1 say x=1.5 then |x-1|<1 if x=2 then |x-1|>1

E it is

correct,i overlooked <=1 :cry:
_________________

cheers
Its Now Or Never

VP
VP
avatar
Joined: 17 Jun 2008
Posts: 1479
Re: Inequality DS [#permalink]

Show Tags

New post 11 Sep 2008, 10:27
GMAT TIGER wrote:
jjhko wrote:
Is |x-1|< 1 ?

(1) (x-1)^2 <= 1
(2) x^2 - 1 > 0


1: -2 < x < 2. nsf
2: x < -1 or x > 1. x cannot be 1. nsf.

togather also insuff...

so //E//


Did you mean 0 <=x <=2 and hence nsf?
SVP
SVP
User avatar
Joined: 29 Aug 2007
Posts: 2427
Re: Inequality DS [#permalink]

Show Tags

New post Updated on: 12 Sep 2008, 09:58
scthakur wrote:
GMAT TIGER wrote:
jjhko wrote:
Is |x-1|< 1 ?

(1) (x-1)^2 <= 1
(2) x^2 - 1 > 0


1: -2 < x < 2. nsf
2: x < -1 or x > 1. x cannot be 1. nsf.

togather also insuff...

so //E//


Did you mean 0 <=x <=2 and hence nsf?

nope.

actually 1 is 1: 0 =< x =< 2. nsf

x can be as low as -2 and as high as 2. any value for x that ranges between these two ends satisfies the inequality: (x-1)^2 <= 1.
_________________

Verbal: http://gmatclub.com/forum/new-to-the-verbal-forum-please-read-this-first-77546.html
Math: http://gmatclub.com/forum/new-to-the-math-forum-please-read-this-first-77764.html
Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT


Originally posted by GMAT TIGER on 11 Sep 2008, 20:53.
Last edited by GMAT TIGER on 12 Sep 2008, 09:58, edited 1 time in total.
VP
VP
avatar
Joined: 17 Jun 2008
Posts: 1479
Re: Inequality DS [#permalink]

Show Tags

New post 12 Sep 2008, 05:30
GMAT TIGER wrote:
nope.

actually 1 is 1: -2 =< x =< 2. nsf

x can be as low as -2 and as high as 2. any value for x that ranges between these two ends satisfies the inequality: (x-1)^2 <= 1.



That is not true....for x = -2.....left side will be 9.....here x cannot be negative......
SVP
SVP
User avatar
Joined: 29 Aug 2007
Posts: 2427
Re: Inequality DS [#permalink]

Show Tags

New post 12 Sep 2008, 09:57
scthakur wrote:
GMAT TIGER wrote:
nope.

actually 1 is 1: -2 =< x =< 2. nsf

x can be as low as -2 and as high as 2. any value for x that ranges between these two ends satisfies the inequality: (x-1)^2 <= 1.



That is not true....for x = -2.....left side will be 9.....here x cannot be negative......


you r right. thanks for the note.

thats actually 0 =< x =< 2.

why it is so easy to overlook so tiny issues that really matters. :twisted: :twisted: :twisted:

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

Verbal: http://gmatclub.com/forum/new-to-the-verbal-forum-please-read-this-first-77546.html
Math: http://gmatclub.com/forum/new-to-the-math-forum-please-read-this-first-77764.html
Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Re: Inequality DS   [#permalink] 12 Sep 2008, 09:57
Display posts from previous: Sort by

Is |x-1|< 1 ? (1) (x-1)^2 <= 1 (2) x^2 - 1 > 0

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.