The boat’s own speed is 18 km / h, the speed of the river is 2 km / h. What is the distance the boat will

| July 11, 2021 | education

The boat’s own speed is 18 km / h, the speed of the river is 2 km / h. What is the distance the boat will sail in 2 hours along the river in 3 hours against the river.

When the boat moves along the river, the direction of movement of the boat coincides with the direction of the river.
This means that the speed of the boat is equal to the sum of the boat’s own speed and the speed of the river.
1) 18 + 2 = 20 (km / h) speed of the boat along the river.
2) 20 * 2 = 40 (km) the boat will sail in 2 hours along the river.

When the boat moves against the stream of the river, its speed will be equal to the boat’s own speed minus the speed of the river.
3) 18 – 2 = 16 (km / h) speed of the boat against the stream of the river.
4) 16 * 3 = 48 (km) the boat will sail in 3 hours against the river.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.