It is currently 20 Sep 2017, 20:07

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

An operation performed on two positive integers, a and b, is

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 03 Sep 2005
Posts: 134

Kudos [?]: 8 [0], given: 0

An operation performed on two positive integers, a and b, is [#permalink]

Show Tags

New post 13 Sep 2005, 23:50
00:00
A
B
C
D
E

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.

An operation performed on two positive integers, a and b, is called left if and only if a@b=b@a for all integers a and b where @ is any operation and the result of the operation plus 3 is always even. Is the operation * <b>left</b>?

(1) a * ; b=a! + b!
(2) In a * ; b, a>b
_________________

Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.

Kudos [?]: 8 [0], given: 0

VP
VP
avatar
Joined: 22 Aug 2005
Posts: 1112

Kudos [?]: 120 [0], given: 0

Location: CA
 [#permalink]

Show Tags

New post 14 Sep 2005, 09:55
I could not conprehend two options. what is semicolon here?

Kudos [?]: 120 [0], given: 0

Intern
Intern
avatar
Joined: 19 Aug 2005
Posts: 41

Kudos [?]: 4 [0], given: 0

 [#permalink]

Show Tags

New post 14 Sep 2005, 11:29
i think the answer is D

(1) as the result of the operation plus 3 is always even, the result of the operation must be odd. as a!+b! can never be odd the operation a * ; b=a! + b! cannot be left.

(2) for a@b=b@a a and b must be equal. so again a * ; b=a! + b! cannot be left.

correct me please

Kudos [?]: 4 [0], given: 0

Manager
Manager
avatar
Joined: 03 Sep 2005
Posts: 134

Kudos [?]: 8 [0], given: 0

 [#permalink]

Show Tags

New post 14 Sep 2005, 13:58
I typed it exactly as I read it in the princeton review test. =( OA is E.

duttsit wrote:
I could not conprehend two options. what is semicolon here?

_________________

Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.

Kudos [?]: 8 [0], given: 0

  [#permalink] 14 Sep 2005, 13:58
Display posts from previous: Sort by

An operation performed on two positive integers, a and b, is

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.