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

It is currently 21 May 2013, 07:50
Customize  |  Hide

Search
Register
New posts
Unanswered

Is 30 a factor of n 1. 30 is a factor of n^2 2. 30 is a

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
Joined: 21 Aug 2004
Posts: 145
Followers: 1

Kudos [?]: 3 [0], given: 0

Is 30 a factor of n 1. 30 is a factor of n^2 2. 30 is a [#permalink] New post 15 Sep 2004, 09:08
00:00

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Is 30 a factor of n

1. 30 is a factor of n^2
2. 30 is a factor of 2n
Manager
Manager
Joined: 27 Aug 2004
Posts: 158
Location: US
Followers: 1

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

GMAT Tests User
 [#permalink] New post 15 Sep 2004, 10:07
A

To find whether 30 is a factor of n, we need to know the factors of n. If n has 2,3 and 5 as it factors then 30 will be a factor of n.

1) Sufficient
if 30 is factor n^2 then n should have at least one 2,3 and 5

2) Insufficient
n might have just 3 and 5 as its factors.
Intern
Intern
Joined: 02 Sep 2004
Posts: 42
Followers: 1

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

 [#permalink] New post 15 Sep 2004, 12:43
C

1. insufficient. SQRT(30) is a permissible n which satisfies st.1.
2. insufficient. 15, 30, 45 can all be a valid picks for n

1+2 stipulates that n is an integer, then you can get valid yes for permissible numbers. sufficient.
GMAT Club Legend
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10

Kudos [?]: 81 [0], given: 0

GMAT Tests User
 [#permalink] New post 15 Sep 2004, 14:41
C also
1) sqrt 30 is a possible answer which makes it inconclusive
2) n could be 15 or 30
Both combined, we know that 30 must be a factor of 2*n*n and if it is, then 30 must also be a factor of n
_________________

Best Regards,

Paul

  [#permalink] 15 Sep 2004, 14:41
    Similar topics Author Replies Last post
Similar
Topics:
 Popular new posts Is 30 a factor of N? 1) 30 is a factor of N^2? 2) 30 is perezhan 15 06 May 2005, 18:01
New posts Is 30 the factor of n? 1). 30 is factor of n^2 2). 30 is joemama142000 5 21 Mar 2006, 16:37
New posts Is 30 the factor of n? 1) 30 is a factor of n^2 2) 30 is a getzgetzu 4 26 Apr 2006, 03:33
New posts Is 30 a factor of n? (1) 30 is a factor of n^2 (2) 30 is a gmatornot 3 22 Aug 2006, 22:25
Popular new posts Is 30 a factor of n? (1) 30 is a factor of n^2 (2) 30 is a yezz 11 04 Sep 2006, 01:31
Display posts from previous: Sort by

Is 30 a factor of n 1. 30 is a factor of n^2 2. 30 is a

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma, IanStewart

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