A person travels from A to B at 40 km/h and returns at 60 km/h. What is the average speed?
Q1. A person travels from A to B at 40 km/h and returns at 60 km/h. What is the average speed?
Answer: 48 km/h
Explanation: Average speed = 2 * 40 * 60 / (40 + 60) = 4800 / 100 = 48 km/h.