Question
A tank with a square base area of 81 cm2 is 60% filled with water. If 7 bottles of water are poured into the tank, 568 cm3 of water would overflow. If 6 bottles of water are poured into the tank, 156 cm3 of water would overflow. What is the height of the tank? Give your answer to one decimal place.
3 m

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A tank with a square base area of 81 cm2 is 60% filled with water. If 7 bottles of water are poured into the tank, 568 cm3 of water would overflow. If 6 bottles of water are poured into the tank, 156 cm3 of water would overflow. What is the height of the tank? Give your answer to one decimal place.