What is the own speed of the boat if in 4.5 hours the boat has covered 72 km along the river
| August 4, 2021 | education
What is the own speed of the boat if in 4.5 hours the boat has covered 72 km along the river, and the speed of the river is 3 km / h?
If the boat traveled 72 km along the river in 4.5 hours, then we can find the speed of the boat along the river.
To do this, we divide 72 km by 4.5 hours.
72 km: 4.5 hours = 16 km / h – speed of the boat along the river.
If the speed of the river is 3 km / h, and the speed of the boat along the river is 16 km / h, then we can find the boat’s own speed.
To do this, subtract the speed of the river from the speed of the boat along the river.
16 km / h – 3 km / h = 13 km / h.
Answer: the speed of the boat is 13 km / h.
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