The chairman of Tata Motors, Ratan Tata, had 300 engineers work for 5 years designing the world's lowest-cost car,convinced that cost-conscious Indian drivers could live without air-conditioning and cup holders.However, after the booking started they found that only 23 percent of initial 253850 orders for the car-the nano-were for the no frills $2600 model.How much time(in days) would it have taken if there were 500 employees working for double the time?

• Let The Completeion Of Work Be "X" Working"x" Hrs A Day...So(300*5*x)/X=(500*Z*2*x)/X=>Z=1.5 Year...If Any One Of The Year Is Leap Year Days Will Be 365+182=547 dAYS...If Both Are Ordinary Years 365+181=546 Days...
• 12 years agoHelpfull: Yes(53) No(6)
• using chain rule..more men less time
  more work done less time
  500*2*x=300*1*5
  x=547.50
• 10 years agoHelpfull: Yes(4) No(0)
• insufficient data.
• 12 years agoHelpfull: Yes(3) No(20)
• remaining work is 77%
  500 employee work double as initial 300 employee
  so,employee number 500 can be taken as 1000 employee
  now 5 years=365*5=1825 days
  remaining work is 100-23=77%
  now required days=
  (1825*300*77)/(1000*23)
  =1832.93 days
  =5 years 7.93 days
  i.e 5 years 8 days
• 12 years agoHelpfull: Yes(3) No(1)
• 1 year 6 month=546days
  Solution
  Er time work year
  300 X 1 5
  300 X ?(1/5) 1
  500 X ?(1/3) 1
  500 2X ?(2/3) 1
  500 2X 1/3 ?(1/2)
  total time to complete 1work=1year6 month=365+181=546days
  
• 11 years agoHelpfull: Yes(2) No(3)
• Amount of work done=No.of workers*Time for which they work
  W=300*1826(365*4+366)=1000*x
  x=547.8 days or so as to say 1.5 yrs
  
• 10 years agoHelpfull: Yes(2) No(0)
• 300 workers worked for 5years and completed 23%
  500 workers worked double time=>1000 workers were worked
  300*5=23%.......(1)
  500*2*t=100%....(2)
  solve 1,2
  we get :t=150/23years
  =150/23*365
  =2400days (approx.)
• 12 years agoHelpfull: Yes(0) No(2)