Question

A tugboat goes 180 miles upstream in 15 hours. The return trip downstream takes 10 hours.
find the speed of the tugboat without a current and the speed of the current.

Answer 1

A tugboat goes 180 miles upstream in 15 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat wihtout a current and the speed of the current.
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Upstream DATA:
distance = 180 miles ; time = 15 hrs ; rate = 180/15 = 12 mph
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Downstream DATA:
distance = 180 miles ; time = 10 hrs ; rate = 180/10 = 18 mph
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Equation:
Upstream: b - c = 12 mph
Downstrm: b + c = 18 mph

Answer 2

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Answer 3

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