Answer:
Upstream 1.1 hours and down stream 0.6875 hours.
Step-by-step explanation:
Jen motorboat travels at a speed of 13 mph in still water.
Now, the speed of river flows is 3 mph.
Therefore, the upstream speed of the boat is (13 - 3) = 10 mph and the downstream speed of the boat will be (13 + 3) = 16 mph.
Therefore, to travel 11 miles upstream Jen will take [tex]\frac{11}{10} = 1.1[/tex] hours.
And to travel 11 miles down stream Jen will take [tex]\frac{11}{16} = 0.6875[/tex] hours. (Answer)
