To find out the distance traveled by the train, we can use the formula:
distance = speed x time
The speed of the train is given as 100 km/h, and the time it travels is 3 hours. Therefore, we can substitute these values in the formula and calculate the distance traveled:
distance = 100 km/h x 3 h
distance = 300 km
Hence, the train travels a distance of 300 km.