Question
Tammy had 2190 mℓ more tea than Min. After Tammy gave Min 540 mℓ of tea, the ratio of Tammy's tea to Min's tea became 7 : 4. How much tea did Tammy have at first? Give your answer in millilitres.
4 m

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Tammy had 2190 mℓ more tea than Min. After Tammy gave Min 540 mℓ of tea, the ratio of Tammy's tea to Min's tea became 7 : 4. How much tea did Tammy have at first? Give your answer in millilitres.