100 men started working to complete a work in 50 days.After working 8hours/day they had completed 1/3rd of the work in 25 days.How many men should be hired so that they will finish the work in time by working 10 hours/day.

7th feb Elitmus.

• Use M*D* H /W = m*d*h/w
  (100*25*8)/(1/3)=(x*25*10)/(2/3)
  x=160
  160-100=60 more men
  
• 8 years agoHelpfull: Yes(45) No(0)
• 60 men
  
  Working 8 hours/day, in 25 days, 100 men completes 8*25*100= 20000 men hours which is 1/3 of the work, So remaining 2/3 work to be completed =20000*(2/3)/(1/3)=40000 men hours.
  If with 'x' extra men hired ,remaining work is to be completed in 50-25=25 days , working 10 hours/day, then, (100+x)*25*10=40000, 25000+250x=40000, x=60
• 8 years agoHelpfull: Yes(31) No(0)
• according to the question 1/3rd work is already done in 25 days.
  remaining 2/3rd work should done in 25 days.
  100 men ----1/3rd ---25day
  x men ---- 2/3rd----25days
  here x=200, because work is doubled, Men should be doubled.
  now we require 200 men works 8hrs a day to complete the work
  but they decided to work 10hrs a day
  200 men ---8hrs
  x men -----10hrs
  here x=160
  so 60 men should be hired to complete the work.
• 8 years agoHelpfull: Yes(15) No(0)
• Men*Days*work*hours=Men'*Days'*hours*works* ;100*25*1/3*8=Men'*25*2/3*10 ;Solving above equation we get Men' required =60 Ans
• 8 years agoHelpfull: Yes(3) No(7)
• ans =160
  percentage work done in 25 day=100/3
  % work complete in per day=100/3*1/25
  % work done in per hour =100/3*1/25*1/8
  % work done by one man in per one day per hour r=100/3*1/25*1/8*1/100
  so r is the rate work done in percentage in per day per hour by one man
  let n be the no of man for remaining work and they work 10 hour per day for complete work % 200/3 in 25 day
  so, (100/3)*(1/25)*(1/100)*(1/8)*10*25*n=200/3
  
  n=160
  
  
• 8 years agoHelpfull: Yes(1) No(3)
• 100 more men
  
• 8 years agoHelpfull: Yes(1) No(8)
• 125 men
  200*100*1/3=80*x*2/3
• 8 years agoHelpfull: Yes(0) No(6)
• correct answer =60
  
• 8 years agoHelpfull: Yes(0) No(0)
• correct answer =60
  
• 8 years agoHelpfull: Yes(0) No(0)
• correct answer =60
  
• 8 years agoHelpfull: Yes(0) No(0)
• 100 men will work for 25 days, 8 hours daily. So from Men hour days formula
  (Men1*hour1*days)/work=(men2*days2*hour2)/remaining work
  Distribute the value .
  (100*25*8)/(50000/3)=(x*25*10)/(50000*2/3)
  
  Ans will be 60 men.
• 7 years agoHelpfull: Yes(0) No(0)
• 100*8*25=(100+x)*2*20*10
  
  x=60.
• 7 years agoHelpfull: Yes(0) No(0)
• let total work=1
  100 men work 8hr x 25 days complete=1/3 work
  1 men work 1hr x 1 day complete=1/(3x100x8x25) work.......(1)
  work left=1-1/3=>2/3
  A/q
  (100+y) men work 10hr x 25 days complete=2/3 work
  1 men work 1 hr x 1 day complete=2/(3 x (100+y) x 10 x 25) work.....(2)
  equating (1) and (2), we get
  100+y=2*8*10
  y=60 more men
• 7 years agoHelpfull: Yes(0) No(0)