Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 26 May 2013, 01:04
Customize  |  Hide

Search
Register
New posts
Unanswered

exam

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Director
Director
User avatar
Joined: 13 Dec 2006
Posts: 524
Location: Indonesia
Followers: 3

Kudos [?]: 65 [0], given: 0

GMAT Tests User
exam [#permalink] New post 06 Dec 2007, 06:34
In an examination a student can answer in 56 ways. if the number of questions asked exceeds the number of questions to be answered by 2, then how many questions were to be answere?

A. 6
B. 8
C. 4
D. 2
E. 5

Amar
Manager
Manager
User avatar
Joined: 01 Oct 2007
Posts: 87
Followers: 0

Kudos [?]: 6 [0], given: 0

Re: exam [#permalink] New post 06 Dec 2007, 07:47
Amardeep Sharma wrote:
In an examination a student can answer in 56 ways. if the number of questions asked exceeds the number of questions to be answered by 2, then how many questions were to be answere?

A. 6
B. 8
C. 4
D. 2
E. 5

Amar


If n is the number of questions asked, and the student is allowed to omit two questions, then the number of possible examination answers is n(n-1). The student has n choices for the first omitted question, and n-1 choices for the second. So n(n-1) = 56, and n = 8. But the question wants the number to be answered, not the number asked, so subtract 2. The answer is A.
Manager
Manager
User avatar
Joined: 11 Aug 2007
Posts: 67
Followers: 1

Kudos [?]: 4 [0], given: 0

Re: exam [#permalink] New post 06 Dec 2007, 14:12
Amardeep Sharma wrote:
In an examination a student can answer in 56 ways. if the number of questions asked exceeds the number of questions to be answered by 2, then how many questions were to be answere?

A. 6
B. 8
C. 4
D. 2
E. 5

Amar


A. 8P6=8!/6!=56. 8 is the number of questions asked, 6 is the number of questions to be answered
Re: exam   [#permalink] 06 Dec 2007, 14:12
    Similar topics Author Replies Last post
Similar
Topics:
 New posts EXPERTS_POSTS_IN_THIS_TOPIC GMAT exam schopra 1 18 Jun 2003, 18:59
New posts Arco Exams wiseguy 4 15 Mar 2005, 14:56
New posts Practice Exams donnieray3 0 12 Jun 2005, 16:59
New posts Order of Exam? TheRedRoost3r 7 25 Feb 2007, 21:42
New posts 2 Exams enigma123 1 18 Nov 2011, 14:02
Display posts from previous: Sort by

exam

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com