The boat covered the distance between the two marinas in 3 hours at a speed of 20 km / h.

| June 23, 2021 | education

The boat covered the distance between the two marinas in 3 hours at a speed of 20 km / h. The boat was replaced by a motor ship, the speed of which is 30 km / h. How long does it take for the ship to cover the distance between these quays?

1. According to the formula of the path, the distance traveled is equal to the product of the speed of movement and the time spent on the way.

2. Hence, in order to find the time for which a motor ship travels the distance between the quays, it is necessary to divide the distance between the quays by the speed of the motor ship.

3. The speed of the ship is known. Let’s find the distance between the piers.

4. It is known that a boat with a speed of 20 km / h covers this path in 3 hours, which means that the distance is 20 * 3 = 60 km.

5. Then the time during which the motor ship passes this distance at a speed of 30 km / h is equal to:

60/30 = 2 hours.

Answer: the ship covers the distance between these quays in 2 hours.



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