Question
Nora had 1980 mℓ more orange juice than Tiffany. After Nora gave Tiffany 470 mℓ of orange juice, the ratio of Nora's orange juice to Tiffany's orange juice became 7 : 3. How much orange juice did Nora have at first? Give your answer in millilitres.
4 m

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Nora had 1980 mℓ more orange juice than Tiffany. After Nora gave Tiffany 470 mℓ of orange juice, the ratio of Nora's orange juice to Tiffany's orange juice became 7 : 3. How much orange juice did Nora have at first? Give your answer in millilitres.