Q. A bus travels at a speed of 50 km per hour to go from its origin to its destination at a distance of 300 km and travels at a speed of 60 km per hour to return to the origin. What is the average speed of the bus?

• A. 54.55 km/h
• B. 55 km/h
• C. 55.55 km/h
• D. 54 km/h

Correct Answer: A