If 4 examiner can check some papers working 8 days 5 hours per day, then how many hours can be taken for 2 examiners to check double papers in 20 days?

• men*days*hours/work
  ans:8
• 11 years agoHelpfull: Yes(11) No(1)
• M1*D1*H1/W1=M2*D2*H2/W2
  4*8*5/1=2*20*H2/2
  H2=8.
• 9 years agoHelpfull: Yes(5) No(0)
• 4*8*5=2*x*20/2
  x=8
• 11 years agoHelpfull: Yes(4) No(0)
• 4 hrs/day
  
• 11 years agoHelpfull: Yes(2) No(2)
• 4 days is answer
  
• 11 years agoHelpfull: Yes(1) No(3)