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

It is currently 02 Jun 2015, 11:57

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

x is a positive integer. Is x even?

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 05 Feb 2004
Posts: 290
Location: USA
Followers: 1

Kudos [?]: 3 [1] , given: 0

x is a positive integer. Is x even? [#permalink] New post 08 Oct 2004, 06:16
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

82% (02:10) correct 18% (01:26) wrong based on 75 sessions
x is a positive integer. Is x even?

(1) 9x^2 is divisible by 4
(2) 3x + 2 is divisible by 8
[Reveal] Spoiler: OA

Last edited by Bunuel on 12 Nov 2013, 00:41, edited 1 time in total.
Renamed the topic, edited the question and added the OA.
Joined: 31 Dec 1969
Location: India
Concentration: General Management, Strategy
GMAT 1: 710 Q49 V0
GMAT 2: 740 Q40 V50
GMAT 3: 700 Q48 V38
GPA: 3.6
Followers: 0

Kudos [?]: 92 [0], given: 87716

 [#permalink] New post 08 Oct 2004, 06:28
A?

1. (3x)^2 = 4 or 8 or 12 or 16 or 20 or 24 or 36 or 72..whatever. We can conclude that x will be a odd number or a fraction. Surely not even. Thus, Suff.

2. 3x +2 = 8 or 16 or 24 or 32 whatever. We can confirm that x can be even or fraction. Thus, Insuff.

So, A.
1 KUDOS received
Manager
Manager
avatar
Joined: 07 Sep 2004
Posts: 61
Followers: 1

Kudos [?]: 1 [1] , given: 0

 [#permalink] New post 08 Oct 2004, 07:30
1
This post received
KUDOS
D

in (1) if x is odd this makes 9x^2 odd but 9x^2 is even(divisible by 4)
implies x is even

in (2) if x is odd 3x+2 is odd but 3x+2 should be even (3x+2 div by 8)
imlies x is even
Manager
Manager
avatar
Joined: 21 Aug 2004
Posts: 136
Followers: 1

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

 [#permalink] New post 08 Oct 2004, 08:42
Anonymous wrote:
A?

1. (3x)^2 = 4 or 8 or 12 or 16 or 20 or 24 or 36 or 72..whatever. We can conclude that x will be a odd number or a fraction. Surely not even. Thus, Suff.

2. 3x +2 = 8 or 16 or 24 or 32 whatever. We can confirm that x can be even or fraction. Thus, Insuff.

So, A.


I think x shd be even in Statement 1.
Statement 2 seems sufficent to answer the question. Becasue that condition is true, then x shd be even as no odd number substitute into 3x+2 will be divisible by 8

So it shd be D
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 5002
Followers: 300

Kudos [?]: 55 [0], given: 0

Premium Member
Re: x is a positive integer. Is x even? [#permalink] New post 25 Nov 2014, 05:38
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: x is a positive integer. Is x even?   [#permalink] 25 Nov 2014, 05:38
    Similar topics Author Replies Last post
Similar
Topics:
10 Experts publish their posts in the topic If x and y are positive integers, is x + y even? Bunuel 9 19 Nov 2014, 07:15
2 Experts publish their posts in the topic If x and y are positive integers, is x an even integer? alphonsa 2 18 Aug 2014, 07:55
1 Experts publish their posts in the topic If x is a positive integer, is (x+y) even? ananthpatri 4 05 Aug 2012, 22:02
Experts publish their posts in the topic If x and y are positive integers, is x an even integer? udaymathapati 4 08 Mar 2011, 12:18
4 If x and y are positive integers , is the product xy even krishan 3 29 Jan 2009, 04:47
Display posts from previous: Sort by

x is a positive integer. Is x even?

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.