The boat sailed 48 km along the river in 4 hours. How long will it take for the return trip if the speed
| August 8, 2021 | education
The boat sailed 48 km along the river in 4 hours. How long will it take for the return trip if the speed of the river is 2 km / h.
1. Let’s calculate at what speed the boat moved along the river per hour, if it is known that it covered 48 kilometers in 4 hours.
48/4 = 12 kilometers.
2. Find your own speed of the boat.
12 – 2 = 10 kilometers.
3. Determine with what speed the boat was sailing against the stream of the river.
10 – 2 = 8 kilometers.
4. Find out how long it will take the boat to sail back.
48/8 = 6 hours.
Answer: The boat will need 6 hours on the way back.
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