red and blue chips : PS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 18 Jan 2017, 14:55

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

red and blue chips

Author Message
VP
Joined: 18 May 2008
Posts: 1286
Followers: 16

Kudos [?]: 411 [0], given: 0

Show Tags

18 Mar 2009, 01:35
00:00

Difficulty:

(N/A)

Question Stats:

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

HideShow timer Statistics

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

There are 3 red chips and 2 blue chips. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns are possible?

What is wrong with my solution?
total no of patterns possible = 3! *2! =12
Manager
Joined: 22 Feb 2009
Posts: 140
Schools: Kellogg (R1 Dinged),Cornell (R2), Emory(Interview Scheduled), IESE (R1 Interviewed), ISB (Interviewed), LBS (R2), Vanderbilt (R3 Interviewed)
Followers: 8

Kudos [?]: 119 [0], given: 10

Re: red and blue chips [#permalink]

Show Tags

18 Mar 2009, 03:36
Ans 10.

Question is saying number of pattern possible. Ur solution also includes similar patterns. For example. RRBBR, RRBBR,

So I guess the solution could be 5!/3!*2!= 10.

What is OA?
VP
Joined: 18 May 2008
Posts: 1286
Followers: 16

Kudos [?]: 411 [0], given: 0

Re: red and blue chips [#permalink]

Show Tags

18 Mar 2009, 03:39
oh yes. silly mistake of mine. thanks OA is 10 indeed
Re: red and blue chips   [#permalink] 18 Mar 2009, 03:39
Display posts from previous: Sort by