A student pilot was required to fly to an airport and then return as part of his flight training. The average speed to the airport was 120 km/h, and the ave...

A student pilot was required to fly to an airport and then return as part of his flight training. The average speed to the airport was 120 km/h, and the average speed returning was 150 km/h. If the total flight time was 3 hours, calculate the distance between the two airports.