To determine how long it will take for a train to travel a distance of 72 km at a speed of 48 km/h, you can use the formula:
Time = Distance / Speed
Plugging in the values:
Time = 72 km / 48 km/h
Simplifying:
Time = 1.5 hours
Therefore, it will take the train 1.5 hours to travel a distance of 72 km at a speed of 48 km/h.