Question
Marion had 2360 mℓ more milk than Julie. After Marion gave Julie 520 mℓ of milk, the ratio of Marion's milk to Julie's milk became 7 : 3. How much milk did Marion have at first? Give your answer in millilitres.
4 m

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Marion had 2360 mℓ more milk than Julie. After Marion gave Julie 520 mℓ of milk, the ratio of Marion's milk to Julie's milk became 7 : 3. How much milk did Marion have at first? Give your answer in millilitres.