2021 · Q64
A train travels 600 km in 5 hours and the next 900 km in 10 hours. What is the average speed of the train?
Elementary MathematicsTime, Speed and Distance
- A80 km/hr
- B90 km/hr
- C100 km/hr
- D120 km/hr
Explanation
Average speed = total distance / total time = (600 + 900)/(5 + 10) = 1500/15 = 100 km/hr. Hence option C. (It is not the average of the two speeds.)