Question

A military jet cruising at an altitude of 12.0km and speed of 1400./kmh burns fuel at the rate of 40.7/Lmin . How would you calculate the amount of fuel the jet consumes on a 1500.km mission?

Answer 1

Given:
   speed- 1400 km/hr
 fuel burning rate -40.7 L/min

   To find:
the amount of fuel the jet consumes on a 1500.km mission.

   solution:
   time taken for 1500 km mission = time taken for 1400 km + time taken for 100 km
  = 60 min + (60/14)
  = 60+4.3
  = 64.3 min
  time taken for 1500 km mission is 64.3 minutes.

   as the missile consumes 40.7 litres of fuel per minute.
 fuel consumed for 1500 km mission = 64.3*40.7
  =2617 litres
 hence the total amount of fuel consumed in 1500 km mission is 2617 litres.