Word problems › Distance, speed and time › Average speed
Average speed on a round trip
High school · ●●○○○ 20 pts
A man travels from point A to point B at a speed of 20 km/h and returns from point B to point A at a speed of 30 km/h. The distance from A to B equals the distance from B to A. Find his average speed over the whole trip, in km/h.