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

It is currently 15 Sep 2014, 01:33

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

Easy number property problem...or is it?

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 10 Jun 2009
Posts: 31
Location: Stockholm, Sweden
Followers: 0

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

Easy number property problem...or is it? [#permalink] New post 14 Jun 2009, 23:38
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
For how many integers N is 2^N = N^2

1) None
2) One
3) Two
4) Three
5) More than three
Manager
Manager
User avatar
Joined: 08 Feb 2009
Posts: 147
Schools: Anderson
Followers: 3

Kudos [?]: 32 [0], given: 3

Re: Easy number property problem...or is it? [#permalink] New post 15 Jun 2009, 10:29
PhilosophusRex wrote:
For how many integers N is 2^N = N^2

1) None
2) One
3) Two
4) Three
5) More than three



Answer C.

For N = 2 & 4, the equation is satisfied.
Intern
Intern
avatar
Joined: 08 Jun 2009
Posts: 33
Followers: 0

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

Re: Easy number property problem...or is it? [#permalink] New post 15 Jun 2009, 19:00
goldeneagle94 wrote:

1) None
2) One
3) Two
4) Three
5) More than three


Answer C.

For N = 2 & 4, the equation is satisfied.


Is there any number property associated? Or is it by trial and error?
Manager
Manager
User avatar
Joined: 08 Feb 2009
Posts: 147
Schools: Anderson
Followers: 3

Kudos [?]: 32 [0], given: 3

Re: Easy number property problem...or is it? [#permalink] New post 16 Jun 2009, 06:31
Jozu wrote:
goldeneagle94 wrote:

1) None
2) One
3) Two
4) Three
5) More than three


Answer C.

For N = 2 & 4, the equation is satisfied.


Is there any number property associated? Or is it by trial and error?



If you plug-in numbers from -2 to 6, you will see a trend. After which point, there is no need to plug-in because LHS of the equation starts to turn into an enormous value.
Senior Manager
Senior Manager
avatar
Joined: 16 Apr 2009
Posts: 251
Schools: Ross
Followers: 1

Kudos [?]: 23 [0], given: 10

GMAT Tests User
Re: Easy number property problem...or is it? [#permalink] New post 16 Jun 2009, 07:03
Quote:
For how many integers N is 2^N = N^2

1) None
2) One
3) Two
4) Three
5) More than three


Good question.
2^2=2^2
2^4=4^2
IMO ,OA is C
_________________

Keep trying no matter how hard it seems, it will get easier.

Re: Easy number property problem...or is it?   [#permalink] 16 Jun 2009, 07:03
    Similar topics Author Replies Last post
Similar
Topics:
Number properties?!?!?! typicalgmatter 0 09 Nov 2006, 06:17
Number Property govinam 4 19 Sep 2006, 15:04
Number Properties govinam 3 10 Sep 2006, 11:43
Number properties vibha 6 03 Apr 2006, 19:00
Number Properties yb 3 19 Oct 2005, 17:14
Display posts from previous: Sort by

Easy number property problem...or is it?

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Privacy Policy| 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®.