Rowing rate A boy can row a boat at a constant rate of 5 mi/hr in still water, as indicate...

Rowing rate A boy can row a boat at a constant rate of 5 mi/hr in still water, as indicated in the figure. He rows upstream for 15 minutes and then rows downstream, returning to his starting point in another 12 minutes.

EXERCISE

(a) Find the rate of the current.

(b) Find the total distance traveled.