Question
Tank U was filled with water with water up to a height of 17 cm while Tank V and Tank W were empty. Water was poured out into Tank V and W such that the water in all tanks were the same height in the end. How much water was poured out of Tank U?
4 m

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Tank U was filled with water with water up to a height of 17 cm while Tank V and Tank W were empty. Water was poured out into Tank V and W such that the water in all tanks were the same height in the end. How much water was poured out of Tank U?