Question
Xandra had 1580 mℓ more tea than Risa. After Xandra gave Risa 440 mℓ of tea, the ratio of Xandra's tea to Risa's tea became 5 : 3. How much tea did Xandra have at first? Give your answer in millilitres.
4 m

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Xandra had 1580 mℓ more tea than Risa. After Xandra gave Risa 440 mℓ of tea, the ratio of Xandra's tea to Risa's tea became 5 : 3. How much tea did Xandra have at first? Give your answer in millilitres.