NEW HERE? LEARN MORE
closeclose
Last visit was: 27 Apr 2024, 20:52 It is currently 27 Apr 2024, 20:52
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

In how many ways can seven vacancies at a company be filled

User avatar
Arsene_Wenger
Senior Manager
Senior Manager
Joined: 05 Jan 2005
Posts: 287
Own Kudos [?]: 54 [0]
Given Kudos: 0
Send PM
In how many ways can seven vacancies at a company be filled [#permalink] New post   20 Feb 2005, 06:55
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Hide Show timer Statistics
In how many ways can seven vacancies at a company be filled if there are 20 job applicants, three of the vacancies are identical secretarial positions and the remaining four are identical sales representative positions? Assume that eight of the applicants have applied for the secretarial positions, and the remaining 12 have applied for the sales rep positions.

Kindly show your work.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
sandeeplalit
Intern
Intern
Joined: 19 Feb 2005
Posts: 7
Own Kudos [?]: [0]
Given Kudos: 0
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   20 Feb 2005, 07:38
8C3 * 12C4 ??

or am i missing something here..
User avatar
anandnk
Director
Director
Joined: 30 Oct 2003
Posts: 899
Own Kudos [?]: 374 [0]
Given Kudos: 0
Location: NewJersey USA
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   20 Feb 2005, 07:39
It is a metter of choosing 3 secretaries out of 8 and 4 sales res out of 12

8C3 * 12C4
User avatar
banerjeea_98
Director
Director
Joined: 18 Nov 2004
Posts: 679
Own Kudos [?]: 198 [0]
Given Kudos: 0
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   20 Feb 2005, 09:11
8C3 * 12C4.....if the positions were not identical then we can't use this logic, then there will be more ways to choose.
User avatar
faizaniftikhar83
Intern
Intern
Joined: 13 Feb 2005
Posts: 32
Own Kudos [?]: 1 [0]
Given Kudos: 0
Location: Lahore, Pakistan
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   21 Feb 2005, 08:09
yeah

3 sec and 4 sales out of 8 and 1 apps resp

8C3*12C4
User avatar
Rupstar
Manager
Manager
Joined: 15 Feb 2005
Posts: 116
Own Kudos [?]: 13 [0]
Given Kudos: 0
Location: Rockville
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   14 Mar 2005, 12:15
12c4*8c3 here too
but what if the question asked either 4 positions of sales and 3 of secret. OR 3 positions of sales and 4 of secret.
would that be
12c4*8c3+12c3*8c4?
User avatar
Antmavel
Current Student
Joined: 13 Jun 2004
Posts: 583
Own Kudos [?]: 132 [0]
Given Kudos: 0
Location: London, UK
Schools:Tuck'08
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   14 Mar 2005, 21:41
I found the same result : 8C3 * 12C4

Arsene_Wenger please confirm the OA
User avatar
mirhaque
Manager
Manager
Joined: 02 Feb 2004
Posts: 212
Own Kudos [?]: 237 [0]
Given Kudos: 0
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   01 May 2005, 13:03
banerjeea_98 wrote:
8C3 * 12C4.....if the positions were not identical then we can't use this logic, then there will be more ways to choose.


can anybody pls explain the difference between identical and non-identical?
User avatar
MA
Director
Director
Joined: 25 Nov 2004
Posts: 707
Own Kudos [?]: 449 [0]
Given Kudos: 0
Send PM
Re: In how many ways can seven vacancies at a company be filled [#permalink] New post   01 May 2005, 13:42
mirhaque wrote:
banerjeea_98 wrote:
8C3 * 12C4.....if the positions were not identical then we can't use this logic, then there will be more ways to choose.


can anybody pls explain the difference between identical and non-identical?


idetical=combination
non-idetical=permutation



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
GMAT Club Bot
gmatclubot
Re: In how many ways can seven vacancies at a company be filled [#permalink]
01 May 2005, 13:42
Moderators:
Bunuel
Math Expert
92959 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions