A certain number of workmen can do a piece of work in 25 days, in what time will another set of an equal number of men do a piece of work as great supposing that 2 men of the first set can do as much work in a hour as 3 men in the second set can do in an hour A. 60 days B. 75 days C. 90 days D. 105 days E. None of these

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Jun 26th, 2005
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praveen_ravuri2002
Profile Answers by praveen_ravuri2002

Mar 26th, 2006

none of these.
as if we take as work for 1 person is 100 in second set, first set person shoud do 150. hence it will be (3/2)*25 . hence none of these

kavita kaur

Nov 23rd, 2006

let us supose first A and B bw two diff mens
A takes X men to complete work in 25 days
=>1 men can complete it in =25/x days
B takes X men also but no: of days suppose Y days
=>1 men can complet it in =Y/X days
as per condition
2A=3B
=>2*(25/X)=3*(Y/X)
=>Y=50/3
so its none of these