A man undertakes to do a certain work in 150 days . He employs 200men. He finds that only a quarter of the work is done in 50 days. The number of additional men that should be appointed so that the whole work will be finished in time is

• He employs 200men. He finds that only a quarter of the work is done in 50 days.
  
  It means 200 men can complete the total work in 200 days.
  
  so 1 work can be completed in 200 days by 200 men
  hence remaining 3/4 work can be completed in 100 days by 200*200*(3/4)/100 = 300 men
  so he should employ additional 100 men to complete work in time i.e. total 150 days as per contract.
• 11 years agoHelpfull: Yes(7) No(0)
• Ans=Additional 100 men are required
  200 men, 50 days , 1/4 work ---(i), Remaining days=100
  Now these 200 men will work for remaining 100 days also
  So work done by 200 men for 100 days=2*1/4=1/2
  Total work by 200 men for 150 days=1/4 + 1/2=3/4,
  So remaining work=1/4 is to be completed by additional men in 100 days
  From (i) => 200 men, 50 days , 1/4 work OR 100 men , 100 days, 1/4 work
  So to finish the work in time additional 100 men should be appointed
  
• 11 years agoHelpfull: Yes(5) No(3)