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

 It is currently 29 Jun 2015, 15:17

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# In a room filled with 7 people, 4 people have exactly 1

Author Message
TAGS:
Senior Manager
Joined: 06 Jul 2006
Posts: 295
Location: SFO Bay Area
Schools: Berkeley Haas
Followers: 2

Kudos [?]: 38 [0], given: 0

In a room filled with 7 people, 4 people have exactly 1 [#permalink]  17 Feb 2008, 13:23
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
In a room filled with 7 people, 4 people have exactly 1 friend in the room and 3 people have exactly 2 friends in the room (Assuming that friendship is a mutual relationship, i.e. if John is Peter's friend, Peter is John's friend). If two individuals are selected from the room at random, what is the probability that those two individuals are NOT friends?

5/21
3/7
4/7
5/7
16/21
Senior Manager
Joined: 20 Dec 2004
Posts: 257
Followers: 6

Kudos [?]: 84 [0], given: 0

Re: PS: Friends ? [#permalink]  17 Feb 2008, 13:36
Great explanation from walker...

7-p420789
_________________

Stay Hungry, Stay Foolish

Re: PS: Friends ?   [#permalink] 17 Feb 2008, 13:36
Similar topics Replies Last post
Similar
Topics:
45 In a room filled with 7 people, 4 people have exactly 1 sibl 32 09 Jul 2009, 18:39
1 In a room filled with 7 people, 4 people have exactly 1 3 16 Sep 2008, 07:42
8 In a room filled with 7 people, 4 people have exactly 1 5 15 Jan 2008, 11:03
In a room filled with 7 people, 4 people have exactly 1 2 29 Jun 2007, 14:09
In a room filled with 7 people, 4 people have exactly 1 7 23 Jun 2006, 19:38
Display posts from previous: Sort by