The speed of the boat along the river is 28.7 km / h, and upstream – 23.4 km / h. Find the speed of the river.

We solve the problem in a short note, which means in one action we will find the answer to the problem.
Find in the first action the speed of the river.
(28.7-23.4) / 2 = 2.65 kilometers
Answer: The speed of the river is two kilometers and six hundred and fifty meters per hour.



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