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

 It is currently 27 Apr 2015, 06:00

### 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 how many ways can X distribute 20 chocolates among A,B,C

Author Message
TAGS:
Manager
Joined: 05 Jul 2009
Posts: 182
Followers: 1

Kudos [?]: 19 [0], given: 5

Re: PS: permutation - combinations [#permalink]  17 Sep 2009, 15:25
WOW!!! Great Idea and great thread!!! Thanks.
Manager
Joined: 27 May 2012
Posts: 213
Followers: 0

Kudos [?]: 48 [0], given: 366

Re: In how many ways can X distribute 20 chocolates among A,B,C [#permalink]  13 Aug 2013, 02:20
swath20 wrote:
In how many ways can X distribute 20 chocolates among A,B,C and D

(I) If each receives atleast one

(II) If X may chose to give no chocolates to whom he dislikes on that particular day.

Seems as though the answer is D to this one though both the options contradict each other

(I) If each receives atleast one:

Number of ways to distribute n things among r people so that each receive at least one
$\hs{10mm} C^{n-1}_{r-1}\hs{10mm} = C^{19}_{3}$

(II) If X may chose to give no chocolates to whom he dislikes on that particular day.
Number of ways to distribute n things among r people so that each receive 0 to n things

$C^{n+r-1}_{r-1}\hs{10mm} = C^{23}_{3}$

Please do correct if I am making a mistake somewhere.
Thanks
_________________

- Stne

Re: In how many ways can X distribute 20 chocolates among A,B,C   [#permalink] 13 Aug 2013, 02:20

Go to page   Previous    1   2   [ 22 posts ]

Similar topics Replies Last post
Similar
Topics:
2 In how many ways can 5 different fruits be distributed among 3 26 Jun 2014, 22:53
1 In how many ways can Nicole distribute 20 chocolates among B 4 11 Dec 2013, 01:02
8 In how many ways can 5 different candiesbe distributed among 11 21 Oct 2012, 16:52
a) In how many ways can nicole distribute 20 choclates among 2 10 Nov 2006, 08:11
In how many ways can X distribute 20 chocolates among A, B, 2 20 May 2006, 09:30
Display posts from previous: Sort by