Help compute for the distance

An executive drove from home at an average speed of30mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of60mph. The entire distance was150miles; the entire trip took three hours. Find the distance from the airport to the corporate offices.

Please provide step-by-step procedures on how to arrive at the answer.

Disclaimer: It is illegal to use the research material ordered on this website for other than research purposes. You must quote the sources appropriately. The company bears no responsibility for the use of research work, not intended for education use, the work is sold as-is with the highest quality and service available and written by freelancers.