Question
Wendy had 1820 mℓ more milk than Kimberly. After Wendy gave Kimberly 450 mℓ of milk, the ratio of Wendy's milk to Kimberly's milk became 7 : 3. How much milk did Wendy have at first? Give your answer in millilitres.
4 m

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Wendy had 1820 mℓ more milk than Kimberly. After Wendy gave Kimberly 450 mℓ of milk, the ratio of Wendy's milk to Kimberly's milk became 7 : 3. How much milk did Wendy have at first? Give your answer in millilitres.