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

It is currently 10 Feb 2016, 03:58
GMAT Club Tests

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

Can the positive integer n be written as the sum of two

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 31 Mar 2006
Posts: 162
Followers: 1

Kudos [?]: 15 [0], given: 0

Can the positive integer n be written as the sum of two [#permalink] New post 15 May 2006, 01:20
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

. Can the positive integer n be written as the sum of two different positive prime numbers?
(1) n is greater than 3.
(2) n is odd.
Director
Director
avatar
Joined: 24 Oct 2005
Posts: 659
Location: London
Followers: 1

Kudos [?]: 9 [0], given: 0

 [#permalink] New post 15 May 2006, 02:24
Go with E..

Eg : 7 = 5 + 2 ----- proves the point
15 = 11 + 4 ----- disproves the point
Intern
Intern
User avatar
Joined: 04 May 2006
Posts: 49
Followers: 0

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

 [#permalink] New post 15 May 2006, 02:29
(1) n is greater than 3.
if n = 7, we can write 7 = 3+5 (Sum of two positive prime integers) and if n=77, we can't write n as sum of two positive prime integers -- INSUFF
(2) n is odd.
Same example as above can be used to say that it's INSUFF.

Combining 1 & 2, Still we can't say that it's Sufficient to answer.
So I think Answer is E.
_________________

If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z is keep your mouth shut.
Albert Einstein

Intern
Intern
avatar
Joined: 04 May 2006
Posts: 15
Location: Indiana
Followers: 0

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

Re: Integer n? [#permalink] New post 15 May 2006, 04:03
amansingla4 wrote:
. Can the positive integer n be written as the sum of two different positive prime numbers?
(1) n is greater than 3.
(2) n is odd.


Stmt 1 : n>3, 7=5+2 OR 16=11+5. INSUFF
Stmt 2 : n is odd, 7=5+2; 13 = 11+2. INSUFF

Both together, n>3 and n is odd- 7 = 5+2 or 3+4. Hence INSUFF.
Ans (E)

What is the OA?
Director
Director
avatar
Joined: 16 Aug 2005
Posts: 945
Location: France
Followers: 1

Kudos [?]: 15 [0], given: 0

 [#permalink] New post 15 May 2006, 04:11
(1) n>3
n = 5 = 3 + 2
But also, n = 8 = 4 + 4
hence not sufficient

(2) n is odd
n = 5 = 2 + 3
But also, n = 15 = 10 + 5
hence not sufficient

Combining both, not sufficient hence E
  [#permalink] 15 May 2006, 04:11
Display posts from previous: Sort by

Can the positive integer n be written as the sum of two

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| 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®.