Question
A drink seller mixes 3.5 ℓ of water with 2.2 ℓ of pineapple syrup. How much pineapple syrup must he use if he wishes to prepare 57 ℓ of the mixture?
3 m

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A drink seller mixes 3.5 ℓ of water with 2.2 ℓ of pineapple syrup. How much pineapple syrup must he use if he wishes to prepare 57 ℓ of the mixture?