Two computers each produced 48000 public utility bills in a day. One computer printed bills at the rate of 9600 an hour and the other at the rate of 7800 an hour. When the first computer finished its run, how many bills did the other computer still have to print?

• the correct answer is 9000
  
  workings...
  
  48000 / 9600 = 5
  5 * 7800 = 39000
  therefore 48000 - 39000 = 9000
• 11 years agoHelpfull: Yes(68) No(6)
• let computer 1=c1
  computer 2=c2
  for c1
  9600 bills in 1hr
  so 48000 bills in = (1/9600)*48000=5hrs
  now in 1hr c2 still have to print (9600-7800)=1800 bill
  so in 5hrs c2 still have to print=(1800*5)=9000 bills
  
• 10 years agoHelpfull: Yes(10) No(1)
• can anyone ans? :(
• 11 years agoHelpfull: Yes(8) No(4)
• 1st computer completed in 48000/9600=5hrs
  
  in 5 hrs 2nd computer print the bills=5*7800=39000
  
  so the extra bills for print are 48000-39000=9000
  
• 9 years agoHelpfull: Yes(6) No(1)
• cannot understand properly
• 9 years agoHelpfull: Yes(4) No(3)
• first of all we have to see the question carefully
  
  tanx for the views.....lol!!
• 10 years agoHelpfull: Yes(3) No(5)