Question
Abi had 1980 mℓ more tea than Tammy. After Abi gave Tammy 430 mℓ of tea, the ratio of Abi's tea to Tammy's tea became 7 : 3. How much tea did Abi have at first? Give your answer in millilitres.
4 m

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Abi had 1980 mℓ more tea than Tammy. After Abi gave Tammy 430 mℓ of tea, the ratio of Abi's tea to Tammy's tea became 7 : 3. How much tea did Abi have at first? Give your answer in millilitres.