Final answer:
To calculate the average speed of the train, divide the distance travelled (384 kilometres) by the time taken (5 hours), resulting in an average speed of 76.8 km/h.
Step-by-step explanation:
To calculate the average speed of the train in kilometres per hour (km/h), we need to divide the distance travelled by the time taken. Since the train travelled 384 kilometres in 5 hours, using the formula average speed = distance/time, we get:
Average speed = 384 km ÷ 5 h = 76.8 km/h
Therefore, the average speed of the train is 76.8 km/h. Since the question asks for the answer to be given to 1 decimal place, we have already rounded it accordingly.