The principle of a school wants to arrange 5 students on the : Quant Question Archive [LOCKED]
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 18 Jan 2017, 23:31

### 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

# The principle of a school wants to arrange 5 students on the

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 18 [0], given: 0

The principle of a school wants to arrange 5 students on the [#permalink]

### Show Tags

25 Jan 2004, 11:33
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

The principle of a school wants to arrange 5 students on the platform such that the boy ROBERT occupies the second position and that NELLIE is always adjacents to the girl MELANIE. How many such arrangements are possible?

a.2
b.8
c.4
d.16
e.11
_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 3 [0], given: 0

### Show Tags

25 Jan 2004, 15:36
Sunnyboy u r back, I missed u. . I got 8 but I did the traditional way, R is always the 2nd position and N,M never occupy the 1st or 2nd position, so

ARNMB, ARMNB, BRNMA, BRMNA, ARBNM, ARBMN, BRANM, BRAMN
Director
Joined: 03 Jul 2003
Posts: 652
Followers: 3

Kudos [?]: 91 [0], given: 0

### Show Tags

26 Jan 2004, 10:49
By for the best combination question I've seen .
Luckly they haven't given 12 as one of the answer choice.
Otherwise, it would have been doomed.

Another classic example, why sometimes farmulas won't work.

My Anawer also 8.

Keep your qestions coming!

Thanks a lot folks,
Intern
Joined: 13 Jan 2004
Posts: 8
Location: Right here
Followers: 0

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

P & C [#permalink]

### Show Tags

26 Jan 2004, 11:47
Draw it out

__ R __ __ __

How many options to place M and N ? only 2, and that is times 2! for their internal order.

Now, how many options to place A ? two places left, how many options to place B ??? only 1.

2x2!x2x1 = 2x2x2x1 = 8.
Senior Manager
Joined: 30 Aug 2003
Posts: 329
Location: BACARDIVILLE
Followers: 1

Kudos [?]: 18 [0], given: 0

### Show Tags

26 Jan 2004, 13:58

_________________

Pls include reasoning along with all answer posts.
****GMAT Loco****
Este examen me conduce jodiendo loco

Senior Manager
Joined: 11 Nov 2003
Posts: 357
Location: Illinois
Followers: 1

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

### Show Tags

29 Jan 2004, 09:39
sunniboy007 wrote:
:cool

The question needs to clarify the meaning of "second position" whther it is second from either end or just from the left side. The answer changes depending on this clarification. 8 is answer only if we assume that the second position is from LEFT. If assume the second position from either end, the answer would be 16.

I am not sure whether an ETS question will make this clarification or not.
Manager
Joined: 16 Jan 2004
Posts: 64
Location: NJ
Followers: 1

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

### Show Tags

29 Jan 2004, 10:18
I came up with 8.

the way I did was R position is fix so 4 positions remaining

out of 4 N&M can be arrenged in 6 ways with the given condition and the rest 2 can be in 2! with total of 8 ways.

please correct me if i am wrong in my approach. These Permutations, Combinations and probablility are my biggest headaches. Any suggestions on the study/practice materials of those
29 Jan 2004, 10:18
Display posts from previous: Sort by

# The principle of a school wants to arrange 5 students on the

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 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®.