Question
Tank B is half-filled with water while Tank C is empty. Charlie poured water from Tank B into Tank C without spilling until the water level in both tanks were the same. What is the volume of the water in Tank C now?
5 m

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Tank B is half-filled with water while Tank C is empty. Charlie poured water from Tank B into Tank C without spilling until the water level in both tanks were the same. What is the volume of the water in Tank C now?