Question
15 of a container is filled with coffee. After 6.8 ℓ of coffee is poured into the container, it becomes 13 full. How much more coffee would be needed to completely fill the container? Give your answer in litres.
3 m

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15 of a container is filled with coffee. After 6.8 ℓ of coffee is poured into the container, it becomes 13 full. How much more coffee would be needed to completely fill the container? Give your answer in litres.