An airplane travels 3280 km in 4.0 hours what does the airplanes average speed

To find the airplane's average speed, we divide the total distance traveled (3280 km) by the total time taken (4.0 hours).

Average speed = Total distance / Total time
Average speed = 3280 km / 4.0 hours
Average speed = 820 km/h

Therefore, the airplane's average speed is 820 km/h.