Ok I think this problem is either worded wrong or the answers in the multiple choice are wrong. Or if neither one of those then I'm just lost!
here it is:
An Airliner travels 1432 miles in four hours, flying with the wind. on its return trip, it took five hours flying against the same wind to go 830 miles. how fast would the plane have flown without any wind; i.e. the speed in still air?
a. 81 mph
b. 86 mph
c. 91 mph
d. 96 mph
Any way I plug it in i'm not getting the #'s to work - how do I figure this out??