60 men complete work in 40 days.60 men start the work and every five day five people leave.In how many days the work will be completed?

• 60 men --> 40 days
  so they do work in a day is --> 1/40 parts
  1 men(1 day) --> 1/(60*40)
  so totally they have to do 1200 parts of work
  For I five days 5(1/40)+
  Next five days 5(55/2400)..... +5(40/2400)+....5(5/2400)=7/8
  similarly they do for 60 days for the next 5 days no one will be there to complete the work.
  So the job is incomplete and its answer cant be determined.
  Incomplete task..
  
  
• 12 years agoHelpfull: Yes(12) No(3)
• It can not be completed.
• 12 years agoHelpfull: Yes(3) No(0)
• total no. of days will be 145 days
  
  as in first 55 days the work done will be= [5/2400(60+55+....+5)]=325/400
  and after 55 days the 5 men will continue working to finish the work for [(1-(325/400))*2400/5]= 90 days
  so total days is 90+55= 145 days
• 12 years agoHelpfull: Yes(2) No(8)
• not feasible....
  total mandays reqd=60*40=2400
  acc to ques:60*5+55*5+50*5+.....+0
  =300+275+250+225+200+...+0
  25(12+11+10+9+8+7+6+5+4+3+2+1)
  25*78
  1950
• 12 years agoHelpfull: Yes(1) No(6)
• it cannot be completed
  
• 9 years agoHelpfull: Yes(0) No(0)