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

The boat’s own speed is 4.5 km / h, the current speed is 2.5 km / h Find the boat speed when moving with the current and against the current. What path will the boat take downstream in 4 hours and what path will it take upstream in 3 hours?

When moving along the river, its own speed increases by the value of the current speed, and when moving against the current, the speed decreases by the value of the current speed.

4.5 + 2.5 = 7 (km / h) – boat speed along the river.

4.5 – 2.5 = 2 (km / h) – boat speed against the river flow.

To find the distance traveled, you need to multiply the speed by time.

7 * 4 = 28 (km) – the boat will pass in 4 hours along the river.

2 * 3 = 6 (km) – the boat will pass in 3 hours against the stream of the river.