Question
Linda had 1520 mℓ more milk than Gillian. After Linda gave Gillian 490 mℓ of milk, the ratio of Linda's milk to Gillian's milk became 7 : 4. How much milk did Linda have at first? Give your answer in millilitres.
4 m

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Linda had 1520 mℓ more milk than Gillian. After Linda gave Gillian 490 mℓ of milk, the ratio of Linda's milk to Gillian's milk became 7 : 4. How much milk did Linda have at first? Give your answer in millilitres.