Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 25 May 2013, 19:48
Customize  |  Hide

Search
Register
New posts
Unanswered

4 LETTER COMBINATIONS

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
Joined: 28 Jan 2004
Posts: 210
Location: India
Followers: 2

Kudos [?]: 9 [0], given: 4

GMAT Tests User
4 LETTER COMBINATIONS [#permalink] New post 04 Jul 2009, 15:42
00:00

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Find the number of four-letter combinations of the letters in the words COLLEGE.

18
28
120
13
94
Intern
Intern
Joined: 03 Jul 2009
Posts: 4
Followers: 0

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

Re: 4 LETTER COMBINATIONS [#permalink] New post 04 Jul 2009, 16:15
The answer is 18. Check the link below for an explanation.

http://mathforum.org/library/drmath/view/56204.html

\m/
Manager
Manager
Joined: 28 Jan 2004
Posts: 210
Location: India
Followers: 2

Kudos [?]: 9 [0], given: 4

GMAT Tests User
Re: 4 LETTER COMBINATIONS [#permalink] New post 04 Jul 2009, 18:45
I got this question from that link only and could not understand the explanation.
Intern
Intern
Joined: 03 Jul 2009
Posts: 4
Followers: 0

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

Re: 4 LETTER COMBINATIONS [#permalink] New post 04 Jul 2009, 20:34
mdfrahim wrote:
I got this question from that link only and could not understand the explanation.



That makes two of us :?:
Manager
Manager
User avatar
Joined: 12 Apr 2009
Posts: 212
Followers: 2

Kudos [?]: 21 [0], given: 4

GMAT Tests User
Re: 4 LETTER COMBINATIONS [#permalink] New post 05 Jul 2009, 02:36
zeppelin wrote:
mdfrahim wrote:
I got this question from that link only and could not understand the explanation.



That makes two of us :?:


Nice brain teaser but this is not reflective of a gmat question.

but using GMAT concepts

let us first find the permutation of 4 letters from the word college = 7!/(7-4)! = 7!/3! = 840. So there are 840 different permutations.

From these combinations we need to discount half of the occurences where both L's and both E's occur. I'm a bit stumped here.

If someone can shed light on this train of thought that would be kind.

che,
dg
_________________

-talent is the desire to practice-

Re: 4 LETTER COMBINATIONS   [#permalink] 05 Jul 2009, 02:36
    Similar topics Author Replies Last post
Similar
Topics:
 Popular new posts EXPERTS_POSTS_IN_THIS_TOPIC How many letter combinations can be composed of letters of study 13 06 Nov 2008, 11:11
New posts postbox -letter combination coldteleporter 4 10 Sep 2009, 08:15
New posts combination-3 letters, 3 digits kairoshan 3 03 Dec 2009, 11:43
New posts 1 EXPERTS_POSTS_IN_THIS_TOPIC Combination 4 shrive555 3 25 Nov 2010, 19:06
New posts Combinations of 4-letter and 5-letter codes Macsen 2 16 Nov 2011, 20:18
Display posts from previous: Sort by

4 LETTER COMBINATIONS

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma, IanStewart

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com