Question
There was some pear juice in a jug at first. When 880 mℓ of pear juice was poured into it, 230 mℓ of pear juice flowed out of the jug. If the capacity of the jug was 730 mℓ, how much pear juice was in the jug at first?
2 m

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There was some pear juice in a jug at first. When 880 mℓ of pear juice was poured into it, 230 mℓ of pear juice flowed out of the jug. If the capacity of the jug was 730 mℓ, how much pear juice was in the jug at first?