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

It is currently 24 Jul 2014, 07:44

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

simple mod

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1614
Followers: 5

Kudos [?]: 38 [0], given: 0

simple mod [#permalink] New post 08 Jun 2003, 00:29
|X-2|=(X-1)/2
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1614
Followers: 5

Kudos [?]: 38 [0], given: 0

 [#permalink] New post 09 Jun 2003, 21:53
tzolkin wrote:
Ans : 3 and 5/3


The answers are correct. There are two ways to solve it. To square both parts and solve a quadratic equation by checking each root, or to open up a modul by separating the initial equation in two cases.
Intern
Intern
avatar
Joined: 10 Oct 2005
Posts: 8
Followers: 0

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

 [#permalink] New post 09 Jan 2006, 09:52
Is there an easier way to solve these questions? I'm always scared that I'll miss out on some numbers. I can just place numbers and see but I know its not the right and best way !!!
VP
VP
avatar
Joined: 21 Sep 2003
Posts: 1071
Location: USA
Followers: 3

Kudos [?]: 28 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Jan 2006, 10:35
vizzz wrote:
Is there an easier way to solve these questions? I'm always scared that I'll miss out on some numbers. I can just place numbers and see but I know its not the right and best way !!!


vizz,

When we say lxl = 3 it implies that x = 3 or x = -3.

Check this out if you need more info.
http://www.purplemath.com/modules/absolute.htm

so |x-2| = (x-1)/2 implies
x-2 = (x-1)/2 or x-2 = -(x-1)/2

Solve these two eqns and you should arrive at
x = 3 or x = 5/3
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

CEO
CEO
User avatar
Joined: 20 Nov 2005
Posts: 2923
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 13

Kudos [?]: 75 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Jan 2006, 13:18
There are two cases

1. x-2 = (x-1)/2 which yields x = 3

2. -(x-2) = (x-1)/2 which yields x = 5/3
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

VP
VP
User avatar
Joined: 20 Sep 2005
Posts: 1023
Followers: 3

Kudos [?]: 24 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Jan 2006, 13:28
3 and 5/3 as above. Expl. same as above.
Director
Director
User avatar
Joined: 04 Oct 2005
Posts: 587
Location: Chicago
Followers: 1

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

GMAT Tests User
 [#permalink] New post 09 Jan 2006, 21:45
For positive X => x-2=(x-1)/2=> x=3
For negative X=> -(x-2)=(x-1)/2=>x=5/3
  [#permalink] 09 Jan 2006, 21:45
    Similar topics Author Replies Last post
Similar
Topics:
mod dtaneja 1 02 Jun 2009, 02:43
Ds-mod goalsnr 8 06 Jul 2008, 18:12
PS..mod.. empty_spaces 3 15 Aug 2007, 08:50
Equation with Mod Swagatalakshmi 4 28 Dec 2006, 14:33
remainder and mod mand-y 5 27 Feb 2006, 22:13
Display posts from previous: Sort by

simple mod

  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®.