60 litres of diesel is required to travel 600 km using a 800 cc engine. If the volume of diesel required to cover a distance varies directly as the capacity of the engine, then how many litres of diesel is required to travel 800 kms using 1200 cc engine?

• let keep 800 cc constant and calculate amount of diesel for 800 kms.
  800*60/600=80 liters.
  Now, calculate diesel required for new distance i.e 800 km,
  80*1200/800=120 liters.
• 11 years agoHelpfull: Yes(10) No(1)
• Step-1(Generalization)
  liter(unknown as reference) km(relation to reference direct) cc(relation to reference direct)
  known 60 600 800
  unknown X 800 200
  step-2(determine relation between reference and other quantity)
  
  km 600:1200} :: 60:X
  cc 800:600 }
  600*800*X=1200*600*60
  X=120 liter
• 8 years agoHelpfull: Yes(1) No(0)
• Is it 120 liters???
• 11 years agoHelpfull: Yes(0) No(1)
• can you pls explain clearly
• 9 years agoHelpfull: Yes(0) No(1)
• 600 60 800
  800 x 1200
  
  60 * x * 800 = 800 * 60 *1200
  48000x = 800* 72000
  x = 120 liters
• 6 years agoHelpfull: Yes(0) No(0)