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

It is currently 19 Jun 2013, 07:12
Customize  |  Hide

Search
Register
New posts
Unanswered

machine A produces pencils at a constant rate of 9000

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
Joined: 05 Jul 2006
Posts: 200
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
machine A produces pencils at a constant rate of 9000 [#permalink] New post 29 Sep 2006, 08:13
00:00

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
machine A produces pencils at a constant rate of 9000 pencils per hour and machine B produces pencils at a constant rate of 7000 pencils per hour. If two machines together must produce pencils and if each machine can operate for at most 8 hours, what is the least amount of time, in hours, that machine B must operate?

4
4(2/3)
5(1/3)
6
6(1/4)
Senior Manager
Senior Manager
User avatar
Joined: 31 Jul 2006
Posts: 443
Followers: 3

Kudos [?]: 3 [0], given: 0

GMAT Tests User
Re: PS-work [#permalink] New post 29 Sep 2006, 18:07
lan583 wrote:
machine A produces pencils at a constant rate of 9000 pencils per hour and machine B produces pencils at a constant rate of 7000 pencils per hour. If two machines together must produce pencils and if each machine can operate for at most 8 hours, what is the least amount of time, in hours, that machine B must operate?

4
4(2/3)
5(1/3)
6
6(1/4)


Is it me or are you missing total number of penciles?
Manager
Manager
Joined: 05 Jul 2006
Posts: 200
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 29 Sep 2006, 20:16
here is the correct question:

machine A produces pencils at a constant rate of 9000 pencils per hour and machine B produces pencils at a constant rate of 7000 pencils per hour. If two machines together must produce 100000 pencils and if each machine can operate for at most 8 hours, what is the least amount of time, in hours, that machine B must operate?
VP
VP
User avatar
Joined: 21 Aug 2006
Posts: 1026
Followers: 1

Kudos [?]: 12 [0], given: 0

GMAT Tests User
 [#permalink] New post 29 Sep 2006, 23:36
9000*8 hours + 7000*4hours =100000

Is it 4 hours Ian?
_________________

The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.

Manager
Manager
User avatar
Joined: 14 Sep 2006
Posts: 198
Schools: Olin Business School - Washington University
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 30 Sep 2006, 00:25
Straight A.

Machine A works 8 hours, producing 72k pencils, Machine B comes in to produce 28k. 28000/7000 = 4 hours.
  [#permalink] 30 Sep 2006, 00:25
    Similar topics Author Replies Last post
Similar
Topics:
 New posts Machine A produces pencils at a constant rate of 9000 rigger 3 26 Oct 2005, 22:58
New posts Machine A produces pencils at a constant rate of 9000 Zagros 1 24 Mar 2006, 19:59
New posts Machine A produces pencils at a constant rate of 9000 dinesh8 2 03 Jun 2006, 23:26
New posts Machine A produces pencils at a constant rate of 9000 shehreenquayyum 1 05 Nov 2006, 16:05
New posts Machine A produces pencils at a constant rate of 9000 nitinneha 5 04 Apr 2007, 17:09
Display posts from previous: Sort by

machine A produces pencils at a constant rate of 9000

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: VeritasPrepKarishma, Bunuel, IanStewart

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