Question 349531
Boat A 35 mph
After 10 hours boat A travels 35*10 = 350 miles.
..
the difference between them after 10 hours = 5 miles.
SO either the boat B will be 355 miles or 345 miles from starting point.
Since we do not know which one is faster
..
speed of B = 345/10  OR 355/10
speed = 34.5 mph OR 35.5 mph