Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 22 May 2017, 21:34

### 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

# Sits and Row

Author Message
Manager
Joined: 29 May 2008
Posts: 113
Followers: 1

Kudos [?]: 101 [0], given: 0

### Show Tags

17 Jun 2009, 06:25
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many ways can three people sit in a row of five sits if two of the five seats will remain empty?

A) 60
B) 30
C) 20
D) 15
E) 3
Senior Manager
Joined: 08 Jan 2009
Posts: 327
Followers: 2

Kudos [?]: 159 [0], given: 5

### Show Tags

17 Jun 2009, 06:43
Three people can select 5 places in 5C3 ways and the can be rotated among themselves in 3! ways

5C3 * 3! = 10 * 6 = 60.
Manager
Joined: 29 May 2008
Posts: 113
Followers: 1

Kudos [?]: 101 [0], given: 0

### Show Tags

17 Jun 2009, 06:59
It is soooo true those 3 have to stick together "emtpy"

Thank you so much
Intern
Joined: 24 May 2009
Posts: 38
Followers: 0

Kudos [?]: 55 [0], given: 4

### Show Tags

19 Jun 2009, 19:33
Let $$P_1$$ ,$$P_2$$ , $$P_3$$ = 3 distinct persons
E = an empty seat

Therefore, there are $$P_1$$, $$P_2$$, $$P_3$$, E, E members to be rotated. They're 5! methods to rotate them.

However, there're 2 Es in common. So the answer is $$\frac{5!}{2!}$$ = 60. Agree with tkarthi4u, (A).
Re: Sits and Row   [#permalink] 19 Jun 2009, 19:33
Display posts from previous: Sort by

# Sits and Row

 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®.