Answer:
Upstream = 0.5 hour.
Downstream = 0.366 hour.
Step-by-step explanation:
Speed of fram in still water (u) = 2.6 mph.
Speed of water (v) = 0.4 mph .
Speed upstream = u - v = (2.6 - 0.4) mph = 2.2 mph
So the time taken = [tex]\frac{distance}{speed} = \frac{1.1}{2.2}[/tex] = 0.5 hour.
Speed downstream = u + v = (2.6 + 0.4) mph = 3 mph .
So the time taken = [tex]\frac{1.1}{3}[/tex] = 0.366 hour .
