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

It is currently 15 Sep 2014, 21:27

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

GMAT Prep even odd

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 28 Aug 2006
Posts: 245
Location: Albuquerque, NM
Followers: 1

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

GMAT Tests User
GMAT Prep even odd [#permalink] New post 01 Jan 2007, 20:20
Could some one explain this please
Attachments

2.JPG
2.JPG [ 67.66 KiB | Viewed 286 times ]

Manager
Manager
User avatar
Joined: 19 Aug 2006
Posts: 222
Followers: 1

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

GMAT Tests User
Re: GMAT Prep even odd [#permalink] New post 01 Jan 2007, 20:32
jainan24 wrote:
Could some one explain this please


D it is.

Stmt 1) If XZ is even then there are two possibilities EE or EO.
In both cases, for XZ to become even Z must be even.
So sufficient.

Stmt 2) If y is even then Z must be even.
Sufficient.
Manager
Manager
avatar
Joined: 28 Aug 2006
Posts: 245
Location: Albuquerque, NM
Followers: 1

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

GMAT Tests User
 [#permalink] New post 01 Jan 2007, 21:46
thanks, I should have used the factor information in better way
Intern
Intern
avatar
Joined: 10 Apr 2006
Posts: 33
Followers: 0

Kudos [?]: 5 [0], given: 0

GMAT Tests User
 [#permalink] New post 02 Jan 2007, 13:44
I go for D

Given, x, y and z are integers such that, x is a factor of y, and y is a factor of z.

This means than x is also a factor of z. Since z contains all factors y.

1. xz is even - If we assume that z is odd, than x has to be odd. since an odd integer cannot have a even divisor. In such case xz will be odd. There for for xz to be even z has to be even.

2. y is even - Since y is a factor of z and an odd integer cannot have an even factor, z has to be even.
Senior Manager
Senior Manager
User avatar
Joined: 24 Nov 2006
Posts: 352
Followers: 1

Kudos [?]: 11 [0], given: 0

GMAT Tests User
 [#permalink] New post 03 Jan 2007, 13:52
(1) xz even =>
x even & z even
OR
x odd & z even
OR
x even & z odd (impossible; if x even then y and z even).
Therefore: Suff.

(2) y even => z even, right away. Suff.

D.
  [#permalink] 03 Jan 2007, 13:52
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic GMAT Prep Odd/Even Problem JimmyWorld 2 21 Dec 2009, 11:19
1 Odd/Even vksunder 11 03 Oct 2008, 09:54
odds and evens arjtryarjtry 6 28 Aug 2008, 19:28
GMAT Prep : odd and even jainan24 3 31 Dec 2006, 20:18
Odds and Evens.. lhotseface 10 03 Apr 2006, 21:07
Display posts from previous: Sort by

GMAT Prep even odd

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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®.