PS OG 424 : PS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 16 Jan 2017, 05:50

### 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

# PS OG 424

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Manager
Joined: 05 Oct 2005
Posts: 200
Followers: 1

Kudos [?]: 7 [0], given: 0

PS OG 424 [#permalink]

### Show Tags

25 Nov 2005, 11:23
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Hi
can anyone explain me how to approach this one ?
Thanks
IF n is a positive integer less than 2OO and 14n/6O is an integer then n has how many different positive prime factors?

A 2
B 3
C 5
D 6
E 8
_________________

when there is a will there is a way

best regards

SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 326 [0], given: 0

### Show Tags

25 Nov 2005, 11:36
it should be B.

first of all n<100 and 14n/60 is an integer.

that means 7/30 * n = an integer
that means n will be 30, 60, 90, 120, 150, 180

each of these has only 3 different prime factor 2,3 and 5

so B is the answer.
_________________

hey ya......

VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 146 [0], given: 0

Re: PS OG 424 [#permalink]

### Show Tags

25 Nov 2005, 11:36
My answer is B

Rewrite the equation as 14n/60 ==> 7n/30 ==> 7*(n/30)

n must be a multiple of 30. Let n = 30

30's factors are 1, 2, 3, 5 ==> Only 2, 3, 5 are prime.
Re: PS OG 424   [#permalink] 25 Nov 2005, 11:36
Display posts from previous: Sort by

# PS OG 424

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 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®.