It is currently 23 Oct 2017, 03:14

### 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

# 7 people, A, B, C, D, E, F and H, go to a movie and sit next

Author Message
TAGS:

### Hide Tags

Manager
Status: struggling with GMAT
Joined: 06 Dec 2012
Posts: 203

Kudos [?]: 437 [0], given: 46

Concentration: Accounting
GMAT Date: 04-06-2013
GPA: 3.65
7 people, A, B, C, D, E, F and H, go to a movie and sit next [#permalink]

### Show Tags

28 Feb 2013, 12:50
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

7 people, A, B, C, D, E, F and H, go to a movie and sit next to each other in 8 adjacent seats in the front row of the theatre. In how many different arrangements will there be at least one person between A and F?

how this problem be solved?

Kudos [?]: 437 [0], given: 46

Manager
Joined: 27 Feb 2012
Posts: 136

Kudos [?]: 63 [0], given: 22

Re: 7 people, A, B, C, D, E, F and H, go to a movie and sit next [#permalink]

### Show Tags

28 Feb 2013, 13:11
mun23 wrote:
7 people, A, B, C, D, E, F and H, go to a movie and sit next to each other in 8 adjacent seats in the front row of the theatre. In how many different arrangements will there be at least one person between A and F?

how this problem be solved?

We need to find at least one person between A and F which is equal to Total ways - No one between A and F
Eight people can be arranged in 8! ways.
No one between A and F is equal to 7!*2! (consider A and F as one. 7 people can be arranged in 7! and A and F in 2!)

So, total ways = 8! - 7!2
_________________

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Please +1 KUDO if my post helps. Thank you.

Kudos [?]: 63 [0], given: 22

Re: 7 people, A, B, C, D, E, F and H, go to a movie and sit next   [#permalink] 28 Feb 2013, 13:11
Display posts from previous: Sort by