Question
Victoria had 2100 mℓ more soy milk than Shannon. After Victoria gave Shannon 510 mℓ of soy milk, the ratio of Victoria's soy milk to Shannon's soy milk became 7 : 3. How much soy milk did Victoria have at first? Give your answer in millilitres.
4 m

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Victoria had 2100 mℓ more soy milk than Shannon. After Victoria gave Shannon 510 mℓ of soy milk, the ratio of Victoria's soy milk to Shannon's soy milk became 7 : 3. How much soy milk did Victoria have at first? Give your answer in millilitres.