A car travels 101 km in the first hour and 55 km in the second hour. What is the average speed (in km/h) of the car for the whole journey?A78B81C79D73Answer: A. 78Read Explanation:Total distance = 101 + 55 = 156 Total time taken = 1 + 1 = 2 hour average speed = 156/2 = 78