The speed of the boat in still water is 15.2 km / h, and the speed of the river flow is 15%

| March 25, 2021 | education

The speed of the boat in still water is 15.2 km / h, and the speed of the river flow is 15% of the speed of the boat. What is the speed of a boat going downstream and the speed of a boat going upstream of the river.

According to the condition of the problem, the speed of the river flow is 15% of the speed of the boat.

Let’s find the speed of the river:

15.2 * 15: 100 = 2.28 km / h.

When the boat moves along the river, its speed will be equal to the sum of the boat’s own speed and the speed of the river flow:

15.2 + 2.28 = 17.48 km / h.

When the boat moves against the stream of the river, its speed will be equal to the difference between the boat’s own speed and the speed of the river flow:

15.2 – 2.28 = 12.92 km / h.

Answer: 17.48 km / h and 12.92 km / h.



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