Question
Cindy had 1730 mℓ more tea than Fanny. After Cindy gave Fanny 400 mℓ of tea, the ratio of Cindy's tea to Fanny's tea became 7 : 4. How much tea did Cindy have at first? Give your answer in millilitres.
4 m

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Cindy had 1730 mℓ more tea than Fanny. After Cindy gave Fanny 400 mℓ of tea, the ratio of Cindy's tea to Fanny's tea became 7 : 4. How much tea did Cindy have at first? Give your answer in millilitres.