Question
Elyse had 2070 mℓ more tea than Xuan. After Elyse gave Xuan 600 mℓ of tea, the ratio of Elyse's tea to Xuan's tea became 7 : 4. How much tea did Elyse have at first? Give your answer in millilitres.
4 m

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Elyse had 2070 mℓ more tea than Xuan. After Elyse gave Xuan 600 mℓ of tea, the ratio of Elyse's tea to Xuan's tea became 7 : 4. How much tea did Elyse have at first? Give your answer in millilitres.