Does (a b) mean a-b : GMAT Quantitative Section
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

It is currently 07 Dec 2016, 04:13
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.

Close

Request Expert Reply

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Does (a b) mean a-b

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Intern
Intern
avatar
Joined: 02 Oct 2013
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 7

Does (a b) mean a-b [#permalink]

Show Tags

New post 12 Nov 2013, 11:58
In my recent princeton review question, I encountered expression (a b), and couldn't decide what does it supposed to mean..

Guess what while looking at the solution, I found out they considered it as a - b
Attachments

Screen Shot 2013-11-13 at 1.25.03 am.png
Screen Shot 2013-11-13 at 1.25.03 am.png [ 94.79 KiB | Viewed 853 times ]

Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 35909
Followers: 6849

Kudos [?]: 90010 [0], given: 10402

Re: Does (a b) mean a-b [#permalink]

Show Tags

New post 12 Nov 2013, 12:03
Intern
Intern
avatar
Joined: 02 Oct 2013
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 7

Re: Does (a b) mean a-b [#permalink]

Show Tags

New post 12 Nov 2013, 12:10
Bunuel wrote:
rajat0627 wrote:
In my recent princeton review question, I encountered expression (a b), and couldn't decide what does it supposed to mean..

Guess what while looking at the solution, I found out they considered it as a - b


I think it's a simple typo. It should read a-b.


Well, I also thought same at first, But the fact that its used in the explanation as well, and that it is in the test made me wonder, thnx anyways..
Director
Director
User avatar
Affiliations: GMATQuantum
Joined: 19 Apr 2009
Posts: 584
Followers: 111

Kudos [?]: 425 [0], given: 14

Re: Does (a b) mean a-b [#permalink]

Show Tags

New post 12 Nov 2013, 22:17
@rajat0627

Yes, this is a typo, they meant a-b, obviously such a blunder on a question while taking a practice test can throw off any student. I actually don't like this question because the example they use a=11 and b=7 does not eliminate answer choice D which is equal to a+b-1 or 11+7-1=17 which is a prime number. This is also the case with choice E, where 11+7=18 is a multiple of 3. I would advise you to stick to official GMAT questions, there is plenty of material out there. There is no need to spend your valuable time on poorly written questions.

Dabral
Re: Does (a b) mean a-b   [#permalink] 12 Nov 2013, 22:17
    Similar topics Author Replies Last post
Similar
Topics:
3 Experts publish their posts in the topic x,y,z are even positive integers. Does it mean all are different? Balajikarthick1990 3 13 Dec 2015, 05:32
what does "4 is a root of" mean? MontrealLady 2 02 May 2010, 08:22
what does Harmonic mean means ? ghentu 5 22 Oct 2009, 19:18
S= (a-b, b-a, a+b) If the mean of set S is a+b, then median tarek99 4 14 Nov 2008, 00:40
1 What is the median of set s = (a-b,b-a,a+b) ? 1:The mean of vishalgc 9 18 Oct 2008, 07:30
Display posts from previous: Sort by

Does (a b) mean a-b

  new topic post reply 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®.