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Mathematics, 16.10.2019 20:30 jarteria0
a motorboat that travels with a speed of 20 km/hour in still water has traveled 36 km against the current and 22 km with the current, having spent 3 hours on the entire trip. find the speed of the current of the river.
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a motorboat that travels with a speed of 20 km/hour in still water has traveled 36 km against the c...
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