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Mathematics, 03.06.2020 13:00 nylahnwalker

4) A boat covers 25km upstream and 44km downstream in 9 hours. Also it covers 15 km upstream and 22 km downstream in 5 hours. Find the speed of boat in still water.

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4) A boat covers 25km upstream and 44km downstream in 9 hours. Also it covers 15 km upstream and 22...

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