The own speed of the ship is 28 km / h. the ship sailed along the river for 4 hours.

The own speed of the ship is 28 km / h. the ship sailed along the river for 4 hours. the speed of the river is 3 km / h. how far did the ship sailed during this time?

To solve the problem, you first need to determine the speed of the ship when moving along the river.
To do this, add the speed of the river to its own speed.
In this case, we get:
28 + 3 = 31 km / h – speed of the ship when moving along the river.

We find the total distance that the ship traveled in 4 hours.
To do this, its speed of movement along the river should be multiplied by a period of time.

In this case, we get:
31 * 4 = 124 km.

Answer. The ship covered 124 km in 4 hours.