If a printer A is capable of printing 5400 credit card bills per hour, while a printer B is capable of printing at a rate of 3600 per hour, the printer B will take how much longer than the printer A to print 13500 bills?
A)60 minutes B)90 minutes C)75 minutes D)None of these

• for A
  60 min = 5400
  1 min = 90
  for B
  1 min = 60
  so, 13500/60-13500/90=75 min.
• 4 years agoHelpfull: Yes(4) No(0)
• for A
  60 min=5400
  1 min=90
  but we need to know time to print 13500 bills
  so, 90x=13500 then x=150.
  means for A, 150 min=13500
  
  similarly, for B
  60 min=3600
  1 min=60
  but we need to know time to print 13500 bills
  so, 60x=13500 then x=225
  means for B, 225 min=13500
  
  now subtract the times, 225-150=75
  so, B takes 75 min more than A to print the bills...!
• 4 years agoHelpfull: Yes(1) No(0)
• A=5400
  B=3600
  B Per hour=5400-3600=lags by 1800/60=30 mins
  A=13500 i.e 5400*2.5
  B=3600*2.5=9000
  B=13500-9000=4500/60
  B=75 mins
  Therefore, B will take 75 mins longer to print than A
• 3 years agoHelpfull: Yes(1) No(0)
• If A is capable of printing 5400 per hour
  so the time required to print 13500 will be = 13500/5400 = 2.5 hr
  Since B is capable of printing 3600 per hour
  the time required to print 13500 will be = 13500/3600 = 3.75 hr
  difference between the time will be = (3.75*60) - (2.5*60) = 225-150 = 75(ans)
• 3 years agoHelpfull: Yes(1) No(0)
• A can print 5400/60 mins that is 90 per min
  B can print 60 per min
  To print 13500 bills A take 13500/90 ie, 150 mins
  while b takes 225 mins
  so... 225-150=75
• 3 years agoHelpfull: Yes(0) No(0)
• Option C 75 Mimutes
• 1 year agoHelpfull: Yes(0) No(0)