The distance between the quays is 650 km. River flow speed 2 km / h. The motor ship going against

| February 19, 2021 | education

The distance between the quays is 650 km. River flow speed 2 km / h. The motor ship going against the current arrives in 9 hours 198 km. How many hours will the motor ship take if it moves with the current?

1. We calculate the speed of a river vessel when moving in the direction opposite to the flow of water in the river:

198: 9 = 22 km / h.

2. We calculate the speed of a river vessel in still water:

22 + 2 = 24 km / h.

3. We calculate the speed of a river vessel when moving in the direction in the direction of the flow of water in the river:

24 + 2 = 26 km / h.

3. We calculate the travel time of the river vessel when moving in the direction in the direction of the water flow in the river:

650: 26 = 25 hours.

Answer: a river vessel will sail 650 kilometers in 25 hours, moving in the direction of the flow of water in the river.



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