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

It is currently 30 Aug 2016, 13:02
GMAT Club Tests

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 one

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
VP
VP
User avatar
Joined: 18 May 2008
Posts: 1287
Followers: 14

Kudos [?]: 358 [0], given: 0

Easy one [#permalink]

Show Tags

New post 20 Jan 2009, 09:58
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Two canoe riders must be selected from each of two groups of campers. One group consists of three men and one woman, and the other group consists of two women and one man. What is the probability that two men and two women will be selected?

(A) 1/6 (B) 1/4 (C) 2/7

(D) 1/3 (E) 1/2
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1820
Location: New York
Followers: 31

Kudos [?]: 778 [0], given: 5

Re: Easy one [#permalink]

Show Tags

New post 20 Jan 2009, 10:10
ritula wrote:
Two canoe riders must be selected from each of two groups of campers. One group consists of three men and one woman, and the other group consists of two women and one man. What is the probability that two men and two women will be selected?

(A) 1/6 (B) 1/4 (C) 2/7

(D) 1/3 (E) 1/2


Group A : 3M 2W
Group B : 2W 1M

p = (2C2*3C2 + 2C1*1C1*3C1*2C1)/5C2*3C2
= (3+12)/10*3 = 1/2

E
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Manager
Manager
avatar
Joined: 02 Sep 2008
Posts: 103
Followers: 1

Kudos [?]: 74 [0], given: 1

Re: Easy one [#permalink]

Show Tags

New post 20 Jan 2009, 16:00
A little bit of application will surely help as a problem might not be easy for every one else.
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1820
Location: New York
Followers: 31

Kudos [?]: 778 [0], given: 5

Re: Easy one [#permalink]

Show Tags

New post 21 Jan 2009, 02:38
x2suresh wrote:
ritula wrote:
Two canoe riders must be selected from each of two groups of campers. One group consists of three men and one woman, and the other group consists of two women and one man. What is the probability that two men and two women will be selected?

(A) 1/6 (B) 1/4 (C) 2/7

(D) 1/3 (E) 1/2


Group A : 3M 2W
Group B : 2W 1M

p = (2C2*3C2 + 2C1*1C1*3C1*2C1)/5C2*3C2
= (3+12)/10*3 = 1/2

E


Group A : 3M 1W
Group B : 2W 1M

p = (Select 2W from GRP B and 2M from Grp A)+(Select 1W 1M from GROUP B and 1M and 1W from group A)
=(2C2*3C2 + 2C1*1C1*3C1*1C1)/4C2*3C2
= (3+6)/6*3 = 1/2
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Re: Easy one   [#permalink] 21 Jan 2009, 02:38
Display posts from previous: Sort by

Easy one

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| 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®.