Time Taken:
Departure: 19:15 (7:15 PM)
Arrival: 22:05 (10:05 PM)
Time difference = 2 hours 50 minutes
= 2 + (50/60) hours
= 2.833 hours
 Distance:
144 km
 Speed = Distance ÷ Time
Speed
=
144
2.833
≈
50.82
 km/h
Speed= 
2.833
144
 ≈50.82 km/h
✅ Answer:
The speed of the train is approximately 50.82 km/h