The speed of the river is 3 km / h. how much more is the speed of the boat downstream of the river than its speed upstream?

univerkov | May 1, 2021 | education

Let the boat speed be x km / h.
Since the speed of the river is 3 km / h, the speed of the boat against the current is (x – 3) km / h. , and along the river (x +3) km / h.
Let’s find the difference between the speed of the boat along the river and the speed of the boat against the course of the river: (x +3) – (x – 3) = x + 3 – x + 3 = 6 (km).
Answer: the speed of the boat along the river is 6 km / h more than its speed upstream.

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