Moving against the stream of the river, the motor ship covered 152.65 km in 4.3 hours.

univerkov | March 24, 2021 | education

Moving against the stream of the river, the motor ship covered 152.65 km in 4.3 hours. What path will the motor ship take in 3.8 hours downstream if the current speed is 1.2 km / h?

1.Let’s find the speed of the ship against the current, for this we divide the path by time.

152.65 / 4.3 = 35.5 (km / h) speed of the ship against the current.

2. Let’s find the own speed of the ship.

35.5 + 1.2 = 36.7 (km / h) own speed of the ship.

3. Find the speed of the ship downstream.

36.7 + 1.2 = 37.9 (km / h) speed of the ship downstream.

4. We will find the path of the ship downstream in 3.8 hours.

37.9 * 3.8 = 144.02 (km) the motor ship will pass.

Answer: 144.02 km.

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