Last visit was: 25 Apr 2026, 01:18 It is currently 25 Apr 2026, 01:18
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
vd
User avatar
Joined: 29 Aug 2005
Last visit: 09 Sep 2010
Posts: 134
Own Kudos:
312
Posts: 134
Kudos: 312
P&C question 19 Jun 2008, 04:56
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Can u please tell me how to solve this

Many thanks
Attachment:
book.doc



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
greenoak
User avatar
Joined: 12 Apr 2008
Last visit: 07 Jun 2011
Posts: 412
Own Kudos:
391
Given Kudos: 4
Location: Eastern Europe
Schools:Oxford
Posts: 412
Kudos: 391
P&C question 19 Jun 2008, 06:18
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hmm, looks like quite easy.

For each digit, we have 26 letters + 10 numbers = 36 possibilities. There are 7 digits. So, total number of codes is 36*36*36*36*36*36*36 = 36^7.
User avatar
FN
User avatar
Current Student
Joined: 28 Dec 2004
Last visit: 07 May 2012
Posts: 1,575
Own Kudos:
687
Given Kudos: 2
Location: New York City
Concentration: Social Enterprise
Schools:Wharton'11 HBS'12
Posts: 1,575
Kudos: 687
P&C question 19 Jun 2008, 06:23
Kudos
Add Kudos
Bookmarks
Bookmark this Post
greenoak..that was awesome..
User avatar
greenoak
User avatar
Joined: 12 Apr 2008
Last visit: 07 Jun 2011
Posts: 412
Own Kudos:
391
Given Kudos: 4
Location: Eastern Europe
Schools:Oxford
Posts: 412
Kudos: 391
P&C question 19 Jun 2008, 06:39
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I think that was an irony. But don't laugh at me.
I usually make mistakes in such questions :? In fact every time I see a probability/combinations problems, I'm dead. :(
User avatar
gmat2ndtime
User avatar
Joined: 16 Mar 2008
Last visit: 15 Jul 2009
Posts: 50
Own Kudos:
7
Posts: 50
Kudos: 7
P&C question 19 Jun 2008, 06:42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
36 ^7 for me too....any other answers?
User avatar
jallenmorris
User avatar
Joined: 30 Apr 2008
Last visit: 09 Oct 2014
Posts: 1,226
Own Kudos:
967
Given Kudos: 32
Location: Oklahoma City
Concentration: Life
Schools:Hard Knocks
Posts: 1,226
Kudos: 967
P&C question 19 Jun 2008, 06:45
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I get E, \(36^7\) too, but i'm kind of surprised the answer wasn't \(6^{14}\) since 36 is a perfect square of 6.

I guess that depends on \(36^7\) being the correct answer.

gmat2ndtime
36 ^7 for me too....any other answers?
Show more
User avatar
vd
User avatar
Joined: 29 Aug 2005
Last visit: 09 Sep 2010
Posts: 134
Own Kudos:
312
Posts: 134
Kudos: 312
P&C question 19 Jun 2008, 23:20
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Guys the OA for this one is 36^7

any ideas on what basic material i can cover up so that i polish my P&C and Probability skills
Do the manhattan books help.

Many thanks



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!