It is currently 23 Oct 2017, 08:40

### 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

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

# 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
Joined: 01 Dec 2007
Posts: 54

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

what kinda approach one must follow [#permalink]

### Show Tags

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 [ 8.61 KiB | Viewed 771 times ]

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

Director
Joined: 23 May 2008
Posts: 801

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

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

### Show Tags

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
Joined: 01 Dec 2007
Posts: 54

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

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

### Show Tags

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
Joined: 22 Sep 2008
Posts: 121

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

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

### Show Tags

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

 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®.