To calculate the distance traveled by a train in one hour at a speed of 80 kilometers per hour (km/h), you can simply use the formula:
Distance = Speed × Time
In this case, the speed is 80 km/h and the time is 1 hour. Plugging these values into the formula:
Distance = 80 km/h × 1 hour
Therefore, the train would travel a distance of 80 kilometers in one hour.