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Work Rate Questions - I collected from GMAT Club

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Manager
Manager
Joined: 24 Oct 2011
Posts: 94
Location: India
Concentration: General Management, International Business
Schools: Anderson FEMBA '16
GMAT Date: 11-29-2011
GPA: 3.5
WE: Web Development (Computer Software)
Followers: 1

Kudos [?]: 10 [0], given: 27

Re: Work Rate Questions - I collected from GMAT Club [#permalink] New post 03 Dec 2011, 11:11
Thnx for questions and answers.. Really helpful
Director
Director
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Status: GMAT Learner
Joined: 14 Jul 2010
Posts: 672
Followers: 21

Kudos [?]: 107 [0], given: 31

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Re: Work Rate Questions - I collected from GMAT Club [#permalink] New post 17 Dec 2011, 14:39
Ans. of 14 is 6. not 1.
Joint Rate of John and Jane= 1/20+1/12 = 2/15

John does in 4 days = 1/20*4= 1/5
left 4/5 part is done by both them.

So together they work = 4/5*15/2 = 6 Ans.
_________________

I am student of everyone-baten
Collections:-
PSof OG solved by GC members: http://gmatclub.com/forum/collection-ps-with-solution-from-gmatclub-110005.html
DS of OG solved by GC members: http://gmatclub.com/forum/collection-ds-with-solution-from-gmatclub-110004.html
100 GMAT PREP Quantitative collection http://gmatclub.com/forum/gmat-prep-problem-collections-114358.html
Collections of work/rate problems with solutions http://gmatclub.com/forum/collections-of-work-rate-problem-with-solutions-118919.html
Mixture problems in a file with best solutions: http://gmatclub.com/forum/mixture-problems-with-best-and-easy-solutions-all-together-124644.html

Re: Work Rate Questions - I collected from GMAT Club   [#permalink] 17 Dec 2011, 14:39
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Work Rate Questions - I collected from GMAT Club

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