Find all School-related info fast with the new School-Specific MBA Forum

It is currently 18 Sep 2014, 01:41

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The function f is defined for all positive integers n by the

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 17 Aug 2006
Posts: 87
Followers: 1

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

The function f is defined for all positive integers n by the [#permalink] New post 13 Nov 2008, 04:19
The function f is defined for all positive integers n by the following rule: f(n) is the number of positive integers each of which is less than n and has no positive factor in common with n other than 1. If p is an prime number then f(p) =



p-1

p-2

(p+1)/2

(p-1)/2

2
SVP
SVP
avatar
Joined: 17 Jun 2008
Posts: 1579
Followers: 12

Kudos [?]: 183 [0], given: 0

GMAT Tests User
Re: Prime f(p) [#permalink] New post 13 Nov 2008, 04:50
p-2.

Since, p is a prime number, the only common factor between p and all positive integers less than p is 1.
Manager
Manager
avatar
Joined: 08 Aug 2008
Posts: 234
Followers: 1

Kudos [?]: 16 [0], given: 0

GMAT Tests User
Re: Prime f(p) [#permalink] New post 13 Nov 2008, 10:13
P-1.

f(p) will be all numbers between 1 and P, inclusive of 1 and excluding P i.e. 1<=f(p)<P
Manager
Manager
avatar
Joined: 23 Jul 2008
Posts: 207
Followers: 1

Kudos [?]: 30 [0], given: 0

GMAT Tests User
Re: Prime f(p) [#permalink] New post 13 Nov 2008, 10:30
IMO A
p-1
f(2)=1
f(3)=2
f(5)=4
the only doubt i had with this one is whether to count 1 or not. I believe we should hence A
Manager
Manager
avatar
Joined: 15 Oct 2008
Posts: 54
Followers: 1

Kudos [?]: 2 [0], given: 0

Re: Prime f(p) [#permalink] New post 17 Nov 2008, 02:07
IMO A

I include 1 coz : f(n) is the number of positive integers each of which is less than n

what's OA
Re: Prime f(p)   [#permalink] 17 Nov 2008, 02:07
    Similar topics Author Replies Last post
Similar
Topics:
The function f is defined for all positive integers n by the tmuckens 1 28 Jul 2007, 18:46
The function f is defined for all positive integers n by the dinesh8 7 28 Apr 2006, 22:05
The function f is defined by all positive integers n by the jodeci 1 09 Apr 2006, 03:23
The function f is define for all positive integers n by the myc2004 4 26 Feb 2006, 15:51
The function f is defined for all positive integers n by the Avis 5 20 Feb 2006, 16:39
Display posts from previous: Sort by

The function f is defined for all positive integers n by the

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.