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

It is currently 23 Apr 2014, 06:23

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

How does one deal with Factorials? Is there a trick to

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
Joined: 21 Feb 2008
Posts: 43
Followers: 1

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

How does one deal with Factorials? Is there a trick to [#permalink] New post 02 Mar 2008, 14:22
How does one deal with Factorials? Is there a trick to dealing with them?

ie: What does this equal?

50!-40! / 40!+60!

Or

50! + 13

What's the trick so that you don't have to multiply out the whole thing?

Thanks.
CEO
CEO
User avatar
Joined: 29 Aug 2007
Posts: 2504
Followers: 48

Kudos [?]: 452 [0], given: 19

GMAT Tests User
Re: Dealing with Factorials? [#permalink] New post 03 Mar 2008, 00:42
Liquid wrote:
How does one deal with Factorials? Is there a trick to dealing with them?

ie: What does this equal?

50!-40! / 40!+60!

Or

50! + 13

What's the trick so that you don't have to multiply out the whole thing?

Thanks.


= 50!-40! / 40!+60!
= 40! [(41x42x...x50) - 1]/40! [(1) + 41x42x43x....60)]
= [(41x42x...x50) - 1] / [(1) + 41x42x43x....60)]


Can not be done anything with "50! + 13".
_________________

Verbal: new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Intern
Intern
Joined: 21 Feb 2008
Posts: 43
Followers: 1

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

Re: Dealing with Factorials? [#permalink] New post 03 Mar 2008, 17:37
Sorry, I'm not following your outline... :?
Re: Dealing with Factorials?   [#permalink] 03 Mar 2008, 17:37
    Similar topics Author Replies Last post
Similar
Topics:
New posts How to deal with assumptions? gamjatang 0 16 Dec 2005, 00:03
Popular new posts How to deal with verbal ? CHEN 11 12 Aug 2006, 19:15
New posts Friends, Does anyone have some tricks or notes on how to kyatin 0 26 Apr 2008, 08:11
Popular new posts 157 Experts publish their posts in the topic Compilation of tips and tricks to deal with remainders. sriharimurthy 86 11 Nov 2009, 15:33
New posts How long does it take to drive from the factory to the jakolik 8 12 Aug 2010, 00:26
Display posts from previous: Sort by

How does one deal with Factorials? Is there a trick to

  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®.