NHAI employs 100 men to build a highway of 2km in 50 days working 8 hours a day.if in 25 days they completed 1/3 part of work .than how many more emploies should NHAI hire to finish it in time working 10 hours a day

• Ans) 60 men.
  Work done in 25 days will be 100*25*8=20000 unit -which is 1/3rd(33.33%) of the total work done.
  Now work left is 2/3rd(66.66%) = 2*20000=40000 unit {we get 2 by dividing 66.66 by 33.33}
  40000 work to be done in 25 days working 10 hours a day.
  No. of people required =40000/(25*10)= 160 man.
  100 men are already working so 60 extra men are needed.
  SO, No of men will be ={(2/3*20000)/(25*10)
• 9 years agoHelpfull: Yes(22) No(3)
• (M1*D1*H1)/W1 = (M2*D2*H2)/W2
  
  
  (100*25*8)/(1/3) =((100+a)*25*10))/(2/3)
  
  160=100+a
  
  a=60
• 9 years agoHelpfull: Yes(19) No(1)
• Is this qn asked in ur elitmus exam ???
• 9 years agoHelpfull: Yes(5) No(0)
• 60 extra men required
• 9 years agoHelpfull: Yes(4) No(0)
• Ignore the last line of my solution.
• 9 years agoHelpfull: Yes(3) No(1)
• for 2KM it requires 100*50*8 hrs=40 000 hrs, So 2000 m in 40000hrs =1m/20 hrs
  if 1/3 completed =2000/3=666 m(approx) in 25 days .Remaining Days 25.
  Remaining to complete 2000-666=1334
  to complete 1334 m it requires 1334*20 hrs
  we have 25*10 hrs
  SO mens requered= 1334*20/25*10=107(app)
• 9 years agoHelpfull: Yes(2) No(6)
• I think some of the data that you have given here is incorrect chanki.
• 9 years agoHelpfull: Yes(0) No(2)
• total work =1/3 work in 8 hrs a day +2/3 work in 10 hrs a day
  50*2*8*100 =25*2*1/3*8*100 +25*2*2/3*10*y
  =25*2*1/3 [800+20 y]
  1600*3 =800+20 y
  4000 =20 y
  y =200
  so extra men s is 200-100=100
• 9 years agoHelpfull: Yes(0) No(6)
• 60men required.
• 9 years agoHelpfull: Yes(0) No(0)
• SHALINI KUMARI has right answer
  100 extra men required to complete the work
• 9 years agoHelpfull: Yes(0) No(1)
• 40 more man required ............
  
• 8 years agoHelpfull: Yes(0) No(0)
• yeah 60 is the right answer.try to understand first line those people think 100 men capable to do whole work in 50 day working 8 hours then u are wrong .and u solving the question with wrong assumption .you found 107-100=7 men (approx). and no of men be never approx, day or time may be approx.
• 8 years agoHelpfull: Yes(0) No(0)
• 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(0) No(0)