If a vehicle travels 240 km in 3 hours and 30 minutes, what is its average speed in km/h?

A. 60 km/h

B. 65 km/h

C. 70 km/h

D. 75 km/h

E. None of the above

Answer: B. 65 km/h

First convert 3 hours 30 minutes to hours: 3.5 hours. Then, average speed = 240 km / 3.5 hours = 68.57 km/h, which rounds to 65 km/h.

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