To calculate the time it takes to travel 400 km at an average speed of 80 km/h, we can use the formula:
Time = Distance / Speed
Given that the distance is 400 km and the average speed is 80 km/h, we can substitute these values into the formula:
Time = 400 km / 80 km/h
Simplifying the expression, we find:
Time = 5 hours
Therefore, it will take approximately 5 hours to travel 400 km at an average speed of 80 km/h.