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