In one hour, a boat goes one-third farther downstream than it goes upstream in an hour. Its still-water speed is 14 km/h. What is the speed of the current?

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Accepted Answer

2 km/h. D = (4/3)U and D + U = 2 × 14 = 28 ⇒ (7/3)U = 28 ⇒ U = 12, D = 16. Current = 2 km/h.

In one hour, a boat goes one-third farther downstream than it goes upstream in an hour. Its still-water speed is 14 km/h. What is the speed of the current?

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