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

 It is currently 29 Aug 2016, 13:26

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

28. (SC) Which of the following must be greater than x? I.

Author Message
TAGS:

Hide Tags

Manager
Joined: 10 Feb 2011
Posts: 114
Followers: 1

Kudos [?]: 201 [0], given: 10

28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

17 Mar 2011, 14:44
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (00:30) wrong based on 6 sessions

HideShow timer Statistics

28. (SC) Which of the following must be greater than x?
I. 2x
II. x^2
III. x^2 + 1
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) II and III only
Manager
Joined: 24 Nov 2010
Posts: 210
Location: United States (CA)
Concentration: Technology, Entrepreneurship
Schools: Ross '15, Duke '15
Followers: 2

Kudos [?]: 70 [0], given: 7

Re: 28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

17 Mar 2011, 15:00
banksy wrote:
28. (SC) Which of the following must be greater than x?
I. 2x
II. x^2
III. x^2 + 1
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) II and III only

I. 2x will not be greater than x if x = -ve
II. x^2 will not be greater than x if x= fraction <1
III. x^2 + 1 Will always be greater than x whether x is +ve, -ve or fraction.

ans C.
Manager
Status: Mesmerized
Joined: 24 Jan 2010
Posts: 180
Location: UAE, Dubai
Followers: 2

Kudos [?]: 85 [0], given: 12

Re: 28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

17 Mar 2011, 15:01
C

Posted from my mobile device
_________________

Nanquam Fractum

Director
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 649
Followers: 39

Kudos [?]: 727 [0], given: 39

Re: 28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

19 Mar 2011, 02:29
C is the ans. dreambeliever gives the right explanation.
_________________

Collections:-
PSof OG solved by GC members: http://gmatclub.com/forum/collection-ps-with-solution-from-gmatclub-110005.html
DS of OG solved by GC members: http://gmatclub.com/forum/collection-ds-with-solution-from-gmatclub-110004.html
100 GMAT PREP Quantitative collection http://gmatclub.com/forum/gmat-prep-problem-collections-114358.html
Collections of work/rate problems with solutions http://gmatclub.com/forum/collections-of-work-rate-problem-with-solutions-118919.html
Mixture problems in a file with best solutions: http://gmatclub.com/forum/mixture-problems-with-best-and-easy-solutions-all-together-124644.html

Senior Manager
Joined: 09 Feb 2011
Posts: 285
Concentration: General Management, Social Entrepreneurship
Schools: HBS '14 (A)
GMAT 1: 770 Q50 V47
Followers: 13

Kudos [?]: 175 [0], given: 13

Re: 28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

20 Mar 2011, 23:44
C is the only case where this remains true for x as 0, +ve, -ve or fraction
Manager
Joined: 05 Jan 2011
Posts: 178
Followers: 4

Kudos [?]: 88 [0], given: 8

Re: 28. (SC) Which of the following must be greater than x? I. [#permalink]

Show Tags

21 Mar 2011, 09:02
x^2 +1 will always be greater than x ..So ans is C
Re: 28. (SC) Which of the following must be greater than x? I.   [#permalink] 21 Mar 2011, 09:02
Similar topics Replies Last post
Similar
Topics:
1 if n is a positive integer greater than 8, which of the following must 7 13 Mar 2016, 06:49
If b is greater than 1, which of the following must be negative? 1 09 Nov 2015, 00:29
20 In which one of the following choices must p be greater than 19 15 Feb 2012, 11:19
which of the following must be greater 4 23 Mar 2011, 04:55
12 If n is an integer greater than 6, which of the following must be divi 18 13 Sep 2010, 11:02
Display posts from previous: Sort by