To calculate the time it will take to travel a distance at a given average speed, you can use the formula:
Time = Distance / Speed
In this case, the distance is 54 km and the average speed is 120 km/h. Plugging these values into the formula:
Time = 54 km / 120 km/h
Simplifying the equation:
Time = 0.45 hours
To convert the time from hours to minutes, multiply by 60:
Time = 0.45 hours * 60 minutes/hour
Time = 27 minutes
Therefore, it will take approximately 27 minutes to travel 54 km at an average speed of 120 km/h.