Question
Tammy had 1900 mℓ more milk than Cathy. After Tammy gave Cathy 440 mℓ of milk, the ratio of Tammy's milk to Cathy's milk became 5 : 2. How much milk did Tammy have at first? Give your answer in millilitres.
4 m

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Tammy had 1900 mℓ more milk than Cathy. After Tammy gave Cathy 440 mℓ of milk, the ratio of Tammy's milk to Cathy's milk became 5 : 2. How much milk did Tammy have at first? Give your answer in millilitres.