An athlete crosses a distance of 900 m in 10 minutes. What is his speed in km per hour?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 5.4 km/h
Distance = 900 m or 0.9k m
Time taken = 10 minutes or 1 / 6 hour
Speed = Distance / time taken
Speed = 0.9 / (1 / 6)
Speed = 0.9 × 6 = 5.4km/h