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

It is currently 10 Jul 2014, 15:00

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

Baseball game - Perm or Comb

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 02 Nov 2008
Posts: 60
Followers: 1

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

Baseball game - Perm or Comb [#permalink] New post 22 Nov 2008, 13:15
Don't have the answer for this question.

A baseball league has 13 teams, and each team plays each other twice; once at home, and once away. How many games are scheduled?
CEO
CEO
User avatar
Joined: 29 Aug 2007
Posts: 2501
Followers: 51

Kudos [?]: 473 [0], given: 19

GMAT Tests User
A baseball league has 13 teams, and each team plays each oth [#permalink] New post 22 Nov 2008, 13:37
HG wrote:
Don't have the answer for this question.

A baseball league has 13 teams, and each team plays each other twice; once at home, and once away. How many games are scheduled?


logical approach: any team plays with rest 12 teams. so each plays 12 games but in that 12 games 1 game of each of 12 teams game is included. so the next team (2nd team) plays 11 games. The next team (3rd team) plays 10 games and so on. Add up all.

= 2 (12+11+10+ ..............+ 1)
= 2 x 78
= 156 games.
_________________

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


GT

Current Student
avatar
Joined: 28 Dec 2004
Posts: 3406
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 149 [0], given: 2

GMAT Tests User
Re: Baseball game - Perm or Comb [#permalink] New post 22 Nov 2008, 19:00
its simple 13C2 ways to play 1 game at home, so basically you have 2*13C2 or 156 games
Intern
Intern
avatar
Joined: 26 Sep 2008
Posts: 19
Followers: 0

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

Re: Baseball game - Perm or Comb [#permalink] New post 22 Nov 2008, 19:01
I agree with 156.
Here is my answer:
Each team plays with 12 remaining teams.For example team A play with team B ( of 12 teams) and when we count to team B, team B again plays with team A( of 12 teams remain), so team A and B play twice times with each other.
Then there is : 13(team)*12(team remains)=156
Intern
Intern
avatar
Joined: 27 Sep 2008
Posts: 35
Followers: 0

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

Re: Baseball game - Perm or Comb [#permalink] New post 23 Nov 2008, 21:45
i am bit confused about this one.. i have a q.

if team A and B are playing against one another... wouldnt that be considered as one game.

then how can we 156 games???
Re: Baseball game - Perm or Comb   [#permalink] 23 Nov 2008, 21:45
    Similar topics Author Replies Last post
Similar
Topics:
1 Experts publish their posts in the topic distinguish perm/comb 386390 3 08 Nov 2011, 14:14
perm n comb question just4u1530 5 10 Oct 2007, 11:49
perm or comb? ps joemama142000 4 18 Jan 2006, 10:20
Perm & Comb trulyblessed 3 15 Sep 2005, 20:35
Classic Comb/Perm/Ps Antmavel 8 08 Sep 2004, 17:27
Display posts from previous: Sort by

Baseball game - Perm or Comb

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.