От одной пристани до другой катер, скорость которого 21 км/ч, проходит за 2 часа, а плот проплывет это же расстояние за 14 часов. найдите скорость плота
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26.07.2019 04:10
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1
42:14=3(км\ч)
ответ:3 км\ч скорость плота.