The speed of the ship against the stream of the river is 26 1/2 km / h, and its speed in still water is 28 3/5 km / h.
| December 7, 2020 | education
The speed of the ship against the stream of the river is 26 1/2 km / h, and its speed in still water is 28 3/5 km / h. Find the speed of the boat downstream.
speed of the ship against the current – 26 1/2 km / h
speed in still water – 28 3/5 km / h
downstream speed -?
1) 28 3/5 – 26 1/2 = 28 6/10 – 26 5/10 = 2 1/10 (km / h) – current speed
2) 28 3/5 + 2 1/10 = 28 6/10 + 2 1/10 = 30 7/10 (km)
Answer: the speed of the ship along the current is 30 7/10 km.
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