It is currently 17 Oct 2017, 08:17

### 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

# Family X consists 2 pairs of brothers, Family Y consists of

Author Message
Manager
Joined: 06 May 2005
Posts: 61

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

Location: India
Family X consists 2 pairs of brothers, Family Y consists of [#permalink]

### Show Tags

10 May 2005, 13:57
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Family X consists 2 pairs of brothers, Family Y consists of 3 sisters and Family Z consists of 1 brother / 1 sister. All of them divide themselves into 3 groups to play a game (the group cant be empty). In how many ways can they play

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

Senior Manager
Joined: 15 Mar 2005
Posts: 418

Kudos [?]: 29 [0], given: 0

Location: Phoenix

### Show Tags

10 May 2005, 16:30
Total number of people = 4 + 3 + 2 = 9.
Therefore number of ways of distributing them in 3 groups, with no group empty = 3^6.
_________________

Who says elephants can't dance?

Kudos [?]: 29 [0], given: 0

Director
Joined: 27 Dec 2004
Posts: 896

Kudos [?]: 53 [0], given: 0

### Show Tags

10 May 2005, 19:20
with no group empty, i got 8

Kudos [?]: 53 [0], given: 0

Manager
Joined: 06 May 2005
Posts: 61

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

Location: India

### Show Tags

11 May 2005, 14:59
kapslock wrote:
Total number of people = 4 + 3 + 2 = 9.
Therefore number of ways of distributing them in 3 groups, with no group empty = 3^6.

What is your reasoning. ( the OA is 9!/ (3!)^4 )
_________________

Its not the fact its your attitude towards the fact

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

Re: Permutation / Combination   [#permalink] 11 May 2005, 14:59
Display posts from previous: Sort by