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

It is currently 28 Jul 2015, 18:47
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

In a workshop there are 4 kinds of beds, 3 kinds of closets,

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
User avatar
Joined: 13 Jun 2005
Posts: 252
Location: Haverhill, MA
Followers: 1

Kudos [?]: 7 [0], given: 0

In a workshop there are 4 kinds of beds, 3 kinds of closets, [#permalink] New post 17 Jan 2006, 17:06
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (01:30) correct 0% (00:00) wrong based on 10 sessions
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

1. In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?

a) 168.
b) 16.
c) 80.
d) 48.
e) 56.
VP
VP
User avatar
Joined: 20 Sep 2005
Posts: 1021
Followers: 3

Kudos [?]: 27 [0], given: 0

 [#permalink] New post 17 Jan 2006, 17:11
The kind of day I am having...I am sure I messed it up.
Anyways,
2C1*4C1*(7+3)C1 = 2*4*10 =80.
SVP
SVP
User avatar
Joined: 16 Oct 2003
Posts: 1813
Followers: 4

Kudos [?]: 57 [0], given: 0

Re: PS Permutation and combination [#permalink] New post 17 Jan 2006, 18:13
Professor wrote:
= 2x4x3+2x4x7
= 24 + 56= 80


We are on the same page Professor. :good
CEO
CEO
User avatar
Joined: 20 Nov 2005
Posts: 2910
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 19

Kudos [?]: 138 [0], given: 0

 [#permalink] New post 18 Jan 2006, 01:32
Its 4C1 (One Bed) * 2C1 (1 Shelf) * 10C2 (One chair or closet) = 80
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5067
Location: Singapore
Followers: 24

Kudos [?]: 199 [0], given: 0

 [#permalink] New post 18 Jan 2006, 05:59
Possibilites: 1 shelf, 1 bed, 1 char or 1 shelf, 1 bed, 1 closet

Case 1: 1 shelf, 1 bed, 1 chair
# of ways = 2 * 4 * 7 = 56

Case 2: 1 shelf, 1 bed, 1 closet
# of ways = 2 * 4 * 3 = 24

Total = 80
Senior Manager
Senior Manager
User avatar
Joined: 13 Jun 2005
Posts: 252
Location: Haverhill, MA
Followers: 1

Kudos [?]: 7 [0], given: 0

 [#permalink] New post 18 Jan 2006, 07:14
Good jon guys the OA is 80
Senior Manager
Senior Manager
avatar
Joined: 03 Nov 2005
Posts: 397
Location: Chicago, IL
Followers: 3

Kudos [?]: 30 [0], given: 17

 [#permalink] New post 18 Jan 2006, 20:54
Solution:

No. beds*No. shelves*(no chairs+no. closets)

4*2*(7+3)=80

C it is.
_________________

Hard work is the main determinant of success

Senior Manager
Senior Manager
avatar
Joined: 05 Jan 2006
Posts: 382
Followers: 1

Kudos [?]: 41 [0], given: 0

Re: PS Permutation and combination [#permalink] New post 18 Jan 2006, 22:30
sperumba wrote:
1. In a workshop there are 4 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?

a) 168.
b) 16.
c) 80.
d) 48.
e) 56.


Bed 4
Closets 3
Shelves 2
Chairs 7

One Shelf = 2c1 = 2
One Bed = 4c1= 4
One closets or chairs = 10c1 = 10

total 2*4*10 = 80
Re: PS Permutation and combination   [#permalink] 18 Jan 2006, 22:30
Display posts from previous: Sort by

In a workshop there are 4 kinds of beds, 3 kinds of closets,

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| 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®.