Calculate the average speed in kilometers per hour of a car stuck in traffic that drives 12 km and two hours

To calculate the average speed (in kilometers per hour), we need to divide the total distance traveled by the total time taken.

Distance traveled = 12 km
Total time taken = 2 hours

Average Speed = Distance traveled / Total time taken
Average Speed = 12 km / 2 hours

Dividing 12 km by 2 hours, we find that the average speed of the car stuck in traffic is 6 kilometers per hour.