The boat’s own speed is 4.5 km / h, the current speed is 2.5 km / h. Find the speed of the boat when

| September 19, 2021 | education

The boat’s own speed is 4.5 km / h, the current speed is 2.5 km / h. Find the speed of the boat when moving with the current and against the current Which way the boat will go downstream in 4 hours and which way It will go against the current in 3 hours

1) Find the speed of the boat along the river. To find the speed of the boat along the river, it is necessary to add the speed of the river to the boat’s own speed.

4.5 + 2.5 = 7 (km / h).

2) Find the speed of the boat against the current of the river. To do this, subtract the speed of the river from the boat’s own speed.

4.5 – 2.5 = 2 (km / h).

3) Find the distance covered by the boat along the river in 4 hours. To find the distance, you need to multiply the speed by time.

7 * 4 = 28 (km).

4) Find the distance traveled by the boat in 3 hours against the stream of the river.

2 * 3 = 6 (km).

Answer. 7 km / h, 2 km / h, 28 km, 6 km.



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