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

It is currently 21 Oct 2014, 23:15

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

You have a group of 10 teachers, 4 teach French and 6 teach

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
User avatar
Joined: 28 May 2003
Posts: 13
Followers: 0

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

You have a group of 10 teachers, 4 teach French and 6 teach [#permalink] New post 10 Aug 2004, 07:08
You have a group of 10 teachers, 4 teach French and 6 teach Spanish or German. How many groups of three can you make that contain at least 1 French teach?
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4318
Followers: 23

Kudos [?]: 173 [0], given: 0

 [#permalink] New post 10 Aug 2004, 07:14
100
# of ways to form a group of 3 out of 10: 10C3 = 120
unfavorable outcomes where there are no french teachers: 6C3 = 20
Favorable outcomes: 120-20 = 100
_________________

Best Regards,

Paul

Senior Manager
Senior Manager
avatar
Joined: 05 Feb 2004
Posts: 291
Location: USA
Followers: 1

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

 [#permalink] New post 10 Aug 2004, 07:18
Agree 100..
Group of 3 = Prob of 1 french + Prob of 2 French + Prob all 3 are french
=4C1*6C2 + 4C2*6C1 + 4C3
= 100..
CIO
CIO
User avatar
Joined: 09 Mar 2003
Posts: 466
Followers: 1

Kudos [?]: 27 [0], given: 0

 [#permalink] New post 10 Aug 2004, 07:53
agree with 100 and with method.
Manager
Manager
User avatar
Joined: 28 Jul 2004
Posts: 182
Followers: 1

Kudos [?]: 6 [0], given: 0

 [#permalink] New post 10 Aug 2004, 09:24
4C1 * 6C2 + 4C2 * 6C1 + 4C3 = 100

Thanks
  [#permalink] 10 Aug 2004, 09:24
    Similar topics Author Replies Last post
Similar
Topics:
As your teacher, I teach you. OR Like your teacher, I teach ayushrastogi82 3 28 Feb 2009, 08:14
In a certain group of 10 members, 4 memebers teach only CaspAreaGuy 0 19 Dec 2007, 06:13
1 In a certain group of 10 members, 4 members teach only French and the jet1445 7 26 Feb 2007, 10:08
In a certain group of 10 members, 4 members teach only jylo 1 13 Feb 2007, 09:59
In a certain group of 10 members, 4 members teach only kimmyg 3 18 Oct 2005, 08:08
Display posts from previous: Sort by

You have a group of 10 teachers, 4 teach French and 6 teach

  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®.