Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 21 May 2013, 16:33
Customize  |  Hide

Search
Register
New posts
Unanswered

reproducing from gmattutor group) Two walls face each other

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
Joined: 25 Jan 2004
Posts: 95
Location: China
Followers: 1

Kudos [?]: 2 [0], given: 0

reproducing from gmattutor group) Two walls face each other [#permalink] New post 31 Jan 2004, 02:19
(reproducing from gmattutor group)

Two walls face each other at a certain distance x. A ladder 12m long lies at the bottom of the first wall and rests at the second wall. Another ladder 8m long lies at the bottom of the second wall and rests at the first wall. The two ladders intersect at a point 5m above the ground level (ground is flat between the two walls).

What is the distance x between the two walls?
Kaplan GMAT Prep Discount CodesKnewton GMAT Discount CodesGMAT Pill GMAT Discount Codes
Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 238
Location: India
Followers: 1

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 05:12
Couldnt get it, how abt the choices, lets see if we can do backsolving. :wall
SVP
SVP
User avatar
Joined: 16 Oct 2003
Posts: 1957
Followers: 2

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 10:04
I am unabale to crack it. Dont you think that at what point from one wall does the ladder meet should be given? Any clues... anyone.
Intern
Intern
Joined: 05 Jan 2004
Posts: 28
Location: Los Angeles
Followers: 0

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 12:20
If the answer choices are given, the answer could be figured out...

How abt answr choices
Manager
Manager
Joined: 25 Jan 2004
Posts: 95
Location: China
Followers: 1

Kudos [?]: 2 [0], given: 0

 [#permalink] New post 31 Jan 2004, 13:40
I dont have any answer choices.
Director
Director
User avatar
Joined: 28 Oct 2003
Posts: 533
Location: 55405
Followers: 1

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 14:39
As the gap approaches 8 m, the ladders would approach meeting on the ground.

As the gap approaches 0 m long, they ladders approach meeting 8m up

If we assume that the progression of the difference is continuous and arithmetic (I do not know if this is a valid assumption!), we can figure it out this way.

I'm still working on it.
Director
Director
User avatar
Joined: 28 Oct 2003
Posts: 533
Location: 55405
Followers: 1

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 16:11
My research shows that this problem can be solved with Newton's method.

My research also shows that this problem can be solved in about an hour using Heron's law.

My intuition tells me that this problem isn't relevant to the GMAT.
Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 238
Location: India
Followers: 1

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 16:26
:-D :lol: and my research shows that this problem is relevent for those taking GMAT on Mars. What a :puke problem is this. Damn it spoiled the weekend.
Manager
Manager
Joined: 25 Jan 2004
Posts: 95
Location: China
Followers: 1

Kudos [?]: 2 [0], given: 0

 [#permalink] New post 31 Jan 2004, 17:13
http://www.mathpages.com/home/kmath253.htm
Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 238
Location: India
Followers: 1

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

GMAT Tests User
 [#permalink] New post 31 Jan 2004, 17:19
Those who have already taken the GMAT, did u guys came across this type of questions. My God, who is going to remember the complicated formulas in this question.
  [#permalink] 31 Jan 2004, 17:19
    Similar topics Author Replies Last post
Similar
Topics:
 New posts Two canoe riders must be selected from each of two groups of mistdew 5 11 Aug 2003, 06:27
New posts Two canoe riders must be selected from each of two groups of gayathri 2 02 Jan 2005, 09:19
New posts Two canoe riders must be selected from each of two groups of jinesh 2 30 Jan 2006, 16:50
New posts Two canoe riders must be selected from each of two groups of jodeci 6 27 Mar 2006, 11:34
Popular new posts Two canoe riders must be selected from each of two groups of young_gun 13 30 Sep 2007, 16:10
Display posts from previous: Sort by

reproducing from gmattutor group) Two walls face each other

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com