A cargo plane flew to the maintenance facility and back. It took one hour less time to get there than it did to get back. The average speed on the trip there was 220mph. The average speed on the way back was 200mph. How many hours did the trip there take?

Question

radar · Answer

Ten hours
d=speed(s) * times (t)
Let t=the time to get back.
then t-1 = time to get there.
d is the distance
d=220(t-1)
d=200t
d=d
220(t-1)=200t
220t-220=200t
20t=220
t=11
t-1=10 hours  the time to get there.