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Mathematics, 10.05.2020 04:57, chackey
A motorboat covers the distance from one pier to the other pier in 4 hours and the way back in 5 hours. What is the speed of the boat in still water, if it covers 70 km with the current in 3.5 hours?
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Answers: 3
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A motorboat covers the distance from one pier to the other pier in 4 hours and the way back in 5 hou...
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