Question
A flask contained some coffee. After Hilda had poured 341 mℓ of the coffee into a mug, the flask still contained 270 mℓ more coffee than the mug. How many millilitres of coffee contain at first?
4 m

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A flask contained some coffee. After Hilda had poured 341 mℓ of the coffee into a mug, the flask still contained 270 mℓ more coffee than the mug. How many millilitres of coffee contain at first?