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DOWNLOAD: Work rate problems & answers document

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DOWNLOAD: Work rate problems & answers document [#permalink] New post 24 Mar 2010, 15:25
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Hello everyone

After solving all the problems in the thread below
collection-of-work-rate-problems-77092-60.html

and checking them with solution provided by other members of the forum I have put all the questions and answers together in a word document. My main contribution are the RTW tables which I set up for almost all problems as I find it a very convenient way of organizing the data.
I would like to thank to h2polo, snipertrader and Ian Stewart (there are some words of widsom of gim in the document) and everybody else who contributed to that thread.


Hope it helps

edit: Please leave KUDOS when you download it
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work&rate-problems&answers.doc [172 KiB]
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 27 Mar 2010, 03:32
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 28 Mar 2010, 00:32
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Your welcome :) hope it helps :)
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 28 Mar 2010, 09:20
Kudus man..............
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 01 Apr 2010, 02:59
Thank you very much.
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 01 Apr 2010, 03:19
Thanks! man.
Kudos!
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 01 Apr 2010, 06:41
you're welcome :)
p.s i'm a girl

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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 01 Apr 2010, 07:09
looks good. Yet to solve the questions....but advance Kudos...
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 01 Apr 2010, 07:40
Kudos,

thank you very much!
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 02 Apr 2010, 01:40
Thank you! Kudos :)
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 02 Apr 2010, 04:18
193 downloads !! Wow :)
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 03 Apr 2010, 04:24
Hi thank for sharing the file.
I have one question please:
In problem 10 for example, it appears this expression:

Quote:
(40/(x-4))+(40/x) = (50/6) => x=12


what it is the fastest way to solve it?

Thanks!
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 06 Apr 2010, 11:41
leilak wrote:
you're welcome :)
p.s i'm a girl

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oops! didn't know that :)
I wonder why there aren't many Kudos' as it's been downloaded 317 times but only 9 kudos, looks like GC members are becoming a bit lazy hehe
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 06 May 2010, 01:40
netrix wrote:
Hi thank for sharing the file.
I have one question please:
In problem 10 for example, it appears this expression:

Quote:
(40/(x-4))+(40/x) = (50/6) => x=12


what it is the fastest way to solve it?

Thanks!


So sorry its taken this long, I simply forgot about this thread. If it still helps:

(40/(x-4))+(40/x) = (50/6) => (40x + 40x - 160)*6 = 50x(x-4)

=> 5x^2 - 68x + 96 = 0

if you get the roots out with the formula x = (-b +/- sqrt(b^2-4*a*c)/2*a one of the roots will be 12
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 06 May 2010, 03:39
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Hi leilak, no problem. Thanks for answering.
there are a lot of ugly numbers. An easy approach must be.
For this case of problems, maybe we can plug in numbers with the answer and see what happens
what do you think?
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 06 May 2010, 05:04
of course, you could plug in the answer choices in this equation : (40/(x-4))+(40/x) = (50/6)
I think it may be easier/faster even if you would have to go through all answer choices.
Great idea :)
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 24 Sep 2010, 02:04
When i click,i get .php extension,is there any problem now?cant download it...
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 24 Sep 2010, 06:24
Might come handy, Thanks !
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 25 Jun 2012, 04:03
KUDOS bud....thanks. the diverse collection of problems were useful.
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Re: DOWNLOAD: Work rate problems & answers document [#permalink] New post 27 Feb 2014, 21:15
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: DOWNLOAD: Work rate problems & answers document   [#permalink] 27 Feb 2014, 21:15
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