Last visit was: 17 Jul 2025, 11:06 It is currently 17 Jul 2025, 11:06
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.
Close
Request Expert Reply
Confirm Cancel
avatar
rk21857
Joined: 16 Jan 2011
Last visit: 09 Mar 2011
Posts: 5
Own Kudos:
32
 [8]
Given Kudos: 1
Posts: 5
Kudos: 32
 [8]
Kudos
Add Kudos
8
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
IanStewart
User avatar
GMAT Tutor
Joined: 24 Jun 2008
Last visit: 17 Jul 2025
Posts: 4,145
Own Kudos:
10,635
 [6]
Given Kudos: 98
 Q51  V47
Expert
Expert reply
Posts: 4,145
Kudos: 10,635
 [6]
5
Kudos
Add Kudos
Bookmarks
Bookmark this Post
General Discussion
User avatar
gmat1220
Joined: 03 Feb 2011
Last visit: 17 Feb 2020
Posts: 466
Own Kudos:
Given Kudos: 123
Status:Impossible is not a fact. It's an opinion. It's a dare. Impossible is nothing.
Affiliations: University of Chicago Booth School of Business
Products:
Posts: 466
Kudos: 963
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
gmat1220
Joined: 03 Feb 2011
Last visit: 17 Feb 2020
Posts: 466
Own Kudos:
Given Kudos: 123
Status:Impossible is not a fact. It's an opinion. It's a dare. Impossible is nothing.
Affiliations: University of Chicago Booth School of Business
Products:
Posts: 466
Kudos: 963
Kudos
Add Kudos
Bookmarks
Bookmark this Post
thanks Ian - yes I misinterpreted. This question is resisting any straight formulas or formal approach.

IanStewart
You have:

3 choices for the color of region 1
2 choices for the color of region 2 (must be different from region 1)
2 choices for the color of region 3 (must be different from region 2)
2 choices for the color of region 4 (must be different from region 2)

Multiplying your choices gives 3*2*2*2 = 24 colorings in total.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 37,437
Own Kudos:
Posts: 37,437
Kudos: 1,013
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Moderators:
Math Expert
102603 posts
PS Forum Moderator
697 posts