A person walks at a speed of 5 km/h for 1 hour and then runs at a speed of 10 km/h for 1 hour. What

A. 10 km

B. 15 km

C. 20 km

D. 25 km

E. None of the above

Answer: B. 15 km

Distance covered walking = 5 km; distance covered running = 10 km. Total distance = 5 km + 10 km = 15 km.

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