It is currently 23 Oct 2017, 08:40

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

what kinda approach one must follow

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 01 Dec 2007
Posts: 54

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

what kinda approach one must follow [#permalink]

Show Tags

New post 08 Oct 2008, 22:07
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

what kinda approach one must follow?
Attachments

cannot be factor of 3n+4.JPG
cannot be factor of 3n+4.JPG [ 8.61 KiB | Viewed 771 times ]

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

Director
Director
avatar
Joined: 23 May 2008
Posts: 801

Kudos [?]: 84 [0], given: 0

Re: cannot be factor of 3n+4 [#permalink]

Show Tags

New post 08 Oct 2008, 22:32
im not the best with number properties so i plugged in numbers

let n=12
3*12+4=40, this knocks out 4,5 and 8

let n=1
3*1+4=7, this knocks out 7

we are left with 6

Kudos [?]: 84 [0], given: 0

Manager
Manager
avatar
Joined: 01 Dec 2007
Posts: 54

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

Re: cannot be factor of 3n+4 [#permalink]

Show Tags

New post 08 Oct 2008, 22:49
can someone explain it with alternative approach ?

Last edited by blover on 08 Oct 2008, 23:06, edited 1 time in total.

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

Manager
Manager
avatar
Joined: 22 Sep 2008
Posts: 121

Kudos [?]: 48 [0], given: 0

Re: cannot be factor of 3n+4 [#permalink]

Show Tags

New post 08 Oct 2008, 23:00
n = 1 , 3n + 4 = 7 .. 7 is factor

n = 2 , 3n + 4 = 10 ..5 is factor

n = 4 , 3n + 4 = 16 ..4 is factor

n = 4 , 3n + 4 = 16 ..8 is factor

so only 6 remain.. and that will be answer.

even if you put negative integer you will get same kind of result.

I have other method but do not know how to explain which is very sort..:)

Kudos [?]: 48 [0], given: 0

Re: cannot be factor of 3n+4   [#permalink] 08 Oct 2008, 23:00
Display posts from previous: Sort by

what kinda approach one must follow

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.