Question

A cruise boat traveled 72 miles downstream, with the current, in 2 hours. The return trip upstrea., against the current, covered the same distance but tool 6 hours. Find the average velocity of the current.

Answer 1

Carnivore: an organism that only eats __________________ (meat)

Answer 2

Let the current have speed c and the boat have speed b. Then,
since time = distance/speed, you have
72/(b+c) = 2
72/(b-c) = 6
Now just solve for c.