A cyclist covers a distance of 45 km in 1.5 hours. What is the cyclist's speed in m/s?

A. 10 m/s

B. 12.5 m/s

C. 15 m/s

D. 20 m/s

E. None of the above

Answer: B. 12.5 m/s

First convert 45 km to meters (45000 m) and 1.5 hours to seconds (5400 s). Speed = 45000 m / 5400 s = 8.33 m/s.

Posted in: Time, Distance and Speed - Aptitude - Mathematics