Answer this: Tobias rode his bike on a road for a 2 hr period. On average, he passed a 1 km marker every 3 min during this period. Which of the following was his average speed for this 2 hr period. Select from the following. (1). 10 km/hr. (2). 15 km/hr. (3). 20 km/hr. (4). 25 km/hr.
The answer is: