Question 161497
D=RT
24=R*.4
.4R=24
R=24/.4
R=60 MPH WITH THE WIND
24=R*.75
R=24/.75
R=32 MPH AGAINST THE WIND.
(60-32)/2=28/2=14 MPH IS THE WIND SPEED.
60-14=46 THE ULTRALIGHT SPEED.
32+14=46 DITTO.