The speed of the boat downstream is 18.6 km / h, and against the current 14.2 km / h.
The speed of the boat downstream is 18.6 km / h, and against the current 14.2 km / h. Find your own speed of the boat and the speed of the current?
1. Let’s find the difference in the speed of the boat along the river and against the river. To do this, subtract the speed of the boat against the river from the speed of the boat along the river:
18.6 km / h – 14.2 km / h = 4.4 km / h.
2. Find out the speed of the river. For this, the difference in speed of the boat along the river and against the river is divided into two:
4.4 km / h / 2 = 2.2 km / h.
3. Find out the boat’s own speed. To do this, subtract the speed of the river from the speed of the boat along the river:
18.6 km / h – 2.2 km / h = 16.4 km / h.
Answer: the boat’s own speed is 16.4 km / h, and the speed of the river is 2.2 km / h.