To calculate the average speed, we need to determine the total distance traveled and the time taken. In this case, the total distance traveled is 80 km.
To find the time taken, we can subtract the starting time from the ending time. The man started driving at 12:55 pm and reached town Y at 1:59 pm.
Let's convert the time to a common format, such as hours:
Starting time = 12:55 pm = 12 + (55/60) hours = 12.9167 hours Ending time = 1:59 pm = 13 + (59/60) hours = 13.9833 hours
Now, we can calculate the time taken: Time taken = Ending time - Starting time Time taken = 13.9833 hours - 12.9167 hours = 1.0666 hours
Now, we can calculate the average speed: Average speed = Total distance / Time taken Average speed = 80 km / 1.0666 hours ≈ 75.05 km/h
Therefore, the man's average speed was approximately 75.05 km/h.