Question
Irene had 1360 mℓ more soy milk than Nicole. After Irene gave Nicole 410 mℓ of soy milk, the ratio of Irene's soy milk to Nicole's soy milk became 7 : 4. How much soy milk did Irene have at first? Give your answer in millilitres.
4 m

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Irene had 1360 mℓ more soy milk than Nicole. After Irene gave Nicole 410 mℓ of soy milk, the ratio of Irene's soy milk to Nicole's soy milk became 7 : 4. How much soy milk did Irene have at first? Give your answer in millilitres.