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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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I re-accumulated the work rate problem with solutions. At https://gmatclub.com/forum/collection-of-work-rate-problems-77092.html#p581805 we got problem and solution not in one file but now we will get so.
Working Rate question-GMAT Club.doc [89 KiB]
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Thanks a ton for the work-rate pbm document..
Thanks for compiling.
Good one. Kudos for your effort 
Baten80
Very good post.
There is a mistake thought in the answers. In Question 15 the correct answer is C not A.
Schools: Wharton '16
Posts: 74
thanks 4 putting this 2gthe
SonyGmat
I corrected the mistake(s) in my second post.
rammuaddib
Joined: 31 Dec 2011
Last visit: 05 Apr 2015
Posts: 15
Location: United States
Concentration: Technology, Marketing
Schools: IIM Calcutta - Class of 2001
GMAT 1: 750 Q50 V40
GPA: 3.4
WE:Information Technology (Consulting)
Wonderful collection. thanks much -
I wonder if the answer to 2nd might need a change:
I get 3*(W/T+W/T-2) = 6W*(T-1)/(T*(T-2))... that leads to a quadratic
5T*T -34T+ 24 =0... hence T=5.
So answer would be D (2W corresponds to 2T=10 days)
Does that sound ok?
I wonder if the answer to 2nd might need a change:
I get 3*(W/T+W/T-2) = 6W*(T-1)/(T*(T-2))... that leads to a quadratic
5T*T -34T+ 24 =0... hence T=5.
So answer would be D (2W corresponds to 2T=10 days)
Does that sound ok?
rammuaddib
Joined: 31 Dec 2011
Last visit: 05 Apr 2015
Posts: 15
Location: United States
Concentration: Technology, Marketing
Schools: IIM Calcutta - Class of 2001
GMAT 1: 750 Q50 V40
GPA: 3.4
WE:Information Technology (Consulting)
Me again, sorry -
Also seems that #15 is "C"?
Also seems that #15 is "C"?
nathandrake
Joined: 23 May 2011
Last visit: 20 Mar 2014
Posts: 93
Status:Re- Working on GMAT
Location: Australia
Concentration: Leadership, General Management
GMAT 1: 600 Q44 V29
GPA: 2.4
WE:Analyst (Computer Software)
GMAT 1: 600 Q44 V29
Posts: 93
thanks but the two files have the same questions..am i missing something ?
sunneysood
Top file is with latest correction.
Schools: Cnsrtm-Hass '15
Posts: 13
Baten80
Why is 15. answer A when it should be C still not corrected?
Posts: 11
thanks for posting! what would you say the difficult level of these problems are?
Hi,
Both the documents still contain A as solution for Ques 15. Or am i missing the link?
Both the documents still contain A as solution for Ques 15. Or am i missing the link?
rammuaddib
Hi,
Im an L here, sorry for late response.
the result of the 2nd degree equation you report is incorrect. The correct result is T=6, thus, the Job of 2W would be done in 6*2=12 days which leads us to the answer E.
Rgds,
Alpa
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