The speed of the river is 2.8 km / h, and the speed of the boat downstream is 16.7 km / h.
| July 3, 2021 | education
The speed of the river is 2.8 km / h, and the speed of the boat downstream is 16.7 km / h. Find your own speed of the boat and its speed upstream.
First, we find the boat’s own speed.
To do this, you need to subtract the speed of the river flow, which is 2.8 km / h, from the speed of the boat along the river, namely 16.7 km / h.
In this case, we get:
16.7 – 2.8 = 13.9 km / h.
We find the speed of the boat against the stream of the river.
To do this, it is necessary to subtract the speed of the river from the boat’s own speed.
In this case, we get:
13.9 – 2.8 = 11.1 km / h.
Answer: The own speed of the boat is 13.9 km / h, the speed of the boat against the stream of the river is 11.1 km / h.
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