Average Speed Over Three Legs — hard Descriptive Statistics problem | Incognition
Average Speed Over Three Legs
30 pts · 30 coins
Descriptive StatisticsHard
Average Speed Over Three Legs
A truck completes a journey in three legs:
120 km at a steady 40 km/h
60 km at a steady 30 km/h
100 km at a steady 20 km/h
What is the truck's average speed for the whole journey — that is, the single constant speed at which it would cover the same total distance in the same total time?