posted by Rebecca .
An aeroplane flies from Achester to Beeton taking 7.7 hours however the return flight takes 11.4 hours. This difference is caused by a constant wind which blows at 22.8 m/s from Achester to Beeton. Assuming that the plane travels at a constant airspeed (i.e. velocity relative to the air) how far away is Beeton from Achester?