A boat traveled from Pier A to Pier B with the current in 2 hours. How far from each other are these piers, if the return trip took 6 hours, and the current speed is 2.5 mph?

Answer 1

since distance = speed*time,

(s+2.5)(2) = (s-2.5)(6)
find s, then you can get the distance.

Answer 2

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