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

It is currently 16 Apr 2014, 16:55

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

Who is the fastest among the three workers a, b and c? (1) a

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
Joined: 11 Nov 2003
Posts: 356
Location: Illinois
Followers: 1

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

GMAT Tests User
Who is the fastest among the three workers a, b and c? (1) a [#permalink] New post 17 Jan 2004, 17:55
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Who is the fastest among the three workers a, b and c?

(1) a and b together take 12 hours to complete a job
(2) a, b and c working together can complete the job in 6 hours
Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

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

GMAT Tests User
 [#permalink] New post 17 Jan 2004, 18:55
E? A, B and D are ruled out. of C and E, C is ruled out becoz we can find out that a and b can finish in 12 hrs and c alone in 12 hrs but we cant find out the fastest between a and c. Need more data.
Senior Manager
Senior Manager
Joined: 11 Nov 2003
Posts: 356
Location: Illinois
Followers: 1

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

GMAT Tests User
 [#permalink] New post 17 Jan 2004, 19:08
rakesh1239 wrote:
E? A, B and D are ruled out. of C and E, C is ruled out becoz we can find out that a and b can finish in 12 hrs and c alone in 12 hrs but we cant find out the fastest between a and c. Need more data.


I choose to differ. I would like to go with C

With C, we know that c alone can finish the job in 12 hours whereas a and b together takes 12 hours. If a and b TOGETHER take 12 hours, that means for all those 12 hours they both will be working and then only they will be able to finish. This will lead to the conclusion that if any of them works independently, he/she will take more than 12 hours to finish the job. So this indicates that c is the fastest.

Any comments?
Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

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

GMAT Tests User
 [#permalink] New post 17 Jan 2004, 19:12
I am caught, ur rite. Yeah both A and B together take 12 hrs which means working alone they take more than 12 hrs
Director
Director
Joined: 03 Jul 2003
Posts: 656
Followers: 2

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 21 Jan 2004, 08:19
Not so fast!

If A or B does not do any work, then we have a tie.
Then who is the fastest?
BTW, what is the source of the question.
Senior Manager
Senior Manager
Joined: 11 Nov 2003
Posts: 356
Location: Illinois
Followers: 1

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

GMAT Tests User
 [#permalink] New post 21 Jan 2004, 08:33
kpadma wrote:
Not so fast!

If A or B does not do any work, then we have a tie.
Then who is the fastest?
BTW, what is the source of the question.


I know this is the explanation given in the official answer, but I do not agree with that exaplantion. Why do we have to worry about whether A and B actually worked or not. Had the question been "who finished the work fastest", I would have agreed with the explanation you are giving. But we just need to decide who is fastest based on the given information. That means whoes speed is maximum. (as one characteristic)

The problme has just two statements of facts. Based on that facts, we just have to tell what is the conclusion. For example, if I tell you that I can do a job in 20 hours and you can do the same job in 10 hours, who is faster? The answer should be you. On the other hand if I ask you who will finish the job faster or if the work is already done, who finished the job faster, then I think we do not have any way to answer that. In that case your explanation will hold true.

Please let me know what you think. Thanks
  [#permalink] 21 Jan 2004, 08:33
    Similar topics Author Replies Last post
Similar
Topics:
New posts Three children A, B and C have a toal of $1.20 among them. saurya_s 7 07 Sep 2004, 15:35
New posts Rs.432 is divided amongst three workers A, B and C such that GMATT73 1 29 Oct 2005, 09:11
New posts Rs.432 is divided amongst three workers A, B and C such that karlfurt 7 06 Nov 2006, 06:05
New posts Experts publish their posts in the topic Three workers A, B and C are hired for 4 days. The daily wag pzazz12 4 22 Oct 2010, 04:53
New posts 1 Experts publish their posts in the topic a, b, and c are three integers such that a and b are less carcass 6 18 Apr 2012, 05:05
Display posts from previous: Sort by

Who is the fastest among the three workers a, b and c? (1) a

  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®.