A train runs for 3 hours at a speed of 55 km per hour and for the next 2 hours at a speed of 65 km per hour. Find the average speed of the train for the 5 hours journey.

Total time taken = 3+2 = 5 hrs

Distance travelled in 3hrs at an average speed of 55hrs=Speed*Time=55*3=165km

Distance travelled in 3hrs at an average speed of 55hrs=Speed*Time=55*3 = 165km

Distance travelled in 2hrs at an average speed of 65km/hr=65*2=130

Distance travelled in 2hrs at an average speed of 65km/hr = 65*2=130

Total Distance=165+130=295

Total Distance = 165+130 = 295

Average speed = DistanceTime

=295*5=59km/hr