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

It is currently 23 May 2013, 15:28
Customize  |  Hide

Search
Register
New posts
Unanswered

Machines X and Y produced identical bottles at different

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 26 Jun 2007
Posts: 108
Followers: 2

Kudos [?]: 17 [0], given: 0

Machines X and Y produced identical bottles at different [#permalink] New post 17 Jan 2008, 07:39
00:00

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Machines X and Y produced identical bottles at
different constant rates. Machine X, operating alone
for 4 hours, filled part of a production lot; then
machine Y, operating alone for 3 hours, filled the rest
of this lot. How many hours would it have taken
machine X operating alone to fill the entire
production lot?

(1) Machine X produced 30 bottles per minute.
(2) Machine X produced twice as many bottles in 4hours as machine Y produced in 3 hours.
Director
Director
User avatar
Joined: 12 Jul 2007
Posts: 875
Followers: 8

Kudos [?]: 135 [0], given: 0

GMAT Tests User
Re: DS; Work Problem, Paper Test 55 [#permalink] New post 17 Jan 2008, 07:47
Statement 1 If machine X produces 30 bottles per minute then we know that in 4 hours it produced 7200 bottles. We still don't know anything about machine Y or the total production number. INSUFFICIENT

Statement 2 During its 4 hour shift, Machine X produced twice as many bottles as Machine Y produced in its 3 hour shift.

In other words, total production is equal to Image

If X is a 4 hour shift then Image = 6 hours

Answer B
Manager
Manager
User avatar
Joined: 26 Jun 2007
Posts: 108
Followers: 2

Kudos [?]: 17 [0], given: 0

Re: DS; Work Problem, Paper Test 55 [#permalink] New post 17 Jan 2008, 11:11
eschn3am wrote:
Statement 1 If machine X produces 30 bottles per minute then we know that in 4 hours it produced 7200 bottles. We still don't know anything about machine Y or the total production number. INSUFFICIENT

Statement 2 During its 4 hour shift, Machine X produced twice as many bottles as Machine Y produced in its 3 hour shift.

In other words, total production is equal to Image

If X is a 4 hour shift then Image = 6 hours

Answer B


esch, solving ST2 it looks you didn't need the information in the Q.
Intern
Intern
Joined: 13 Dec 2007
Posts: 32
Followers: 0

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

Re: DS; Work Problem, Paper Test 55 [#permalink] New post 17 Jan 2008, 12:05
Answer is B Statement II: In 4 hrs. machine X produce twice as many bottles as Machine Y produces in 3 hrs.
bottles produced by machine Y = z
Bottles produced by machine X = 2z

It takes 4hrs to produce 2z bottles for machine X. To produce additional z bottles it will take additional 2 hrs. Therefore Machine X will take 6 hrs. to produce 3z bottles.

-------------------------
Statement I: Machine X produces 30 bottles per min. : Doesnt give any info. about machine Y production. If sufficient
Director
Director
User avatar
Joined: 12 Jul 2007
Posts: 875
Followers: 8

Kudos [?]: 135 [0], given: 0

GMAT Tests User
Re: DS; Work Problem, Paper Test 55 [#permalink] New post 17 Jan 2008, 13:01
GGUY wrote:
eschn3am wrote:
Statement 1 If machine X produces 30 bottles per minute then we know that in 4 hours it produced 7200 bottles. We still don't know anything about machine Y or the total production number. INSUFFICIENT

Statement 2 During its 4 hour shift, Machine X produced twice as many bottles as Machine Y produced in its 3 hour shift.

In other words, total production is equal to Image

If X is a 4 hour shift then Image = 6 hours

Answer B


esch, solving ST2 it looks you didn't need the information in the Q.


You still need the information from the question to know that 4 hours from X and 3 hours from Y fills the whole production lot.
1 KUDOS received
SVP
SVP
Joined: 04 May 2006
Posts: 1946
Schools: CBS, Kellogg
Followers: 10

Kudos [?]: 168 [1] , given: 1

GMAT Tests User
Re: DS; Work Problem, Paper Test 55 [#permalink] New post 17 Jan 2008, 23:03
1
This post received
KUDOS
4x+3y = Z

Question is what is the value of Z/x?

1> x =30 bottles per minute. We know only 4x --> not sufficient
2> 4x=2.3y --> Z/x = 9y/(3/2)y=6 sufficient
_________________

Find out what's new at GMAT Club - latest features and updates

Re: DS; Work Problem, Paper Test 55   [#permalink] 17 Jan 2008, 23:03
    Similar topics Author Replies Last post
Similar
Topics:
 Popular new posts Machines X and Y produced identical bottles at different dj 12 05 Jan 2004, 20:50
New posts Machines X and Y produced identical bottles at different joemama142000 4 24 Nov 2005, 22:27
New posts Machines X and Y produced identical bottles at different Hermione 8 23 Oct 2006, 01:21
New posts EXPERTS_POSTS_IN_THIS_TOPIC Machines X and Y produced identical bottles at different sonibubu 8 28 Jan 2008, 13:38
New posts Machines X and Y produce identical bottles at different galaxyblue 3 08 Nov 2011, 20:21
Display posts from previous: Sort by

Machines X and Y produced identical bottles at different

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma, 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