Question
At first, Barrel K and Barrel L contained 0.8 ℓ and 1.6 ℓ of water respectively. Some water from Barrel L was poured into Barrel K with no water spilling over. In the end, there was as much water in Barrel K as in Barrel L. How much water was poured from Barrel L to Barrel K?
3 m

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At first, Barrel K and Barrel L contained 0.8 ℓ and 1.6 ℓ of water respectively. Some water from Barrel L was poured into Barrel K with no water spilling over. In the end, there was as much water in Barrel K as in Barrel L. How much water was poured from Barrel L to Barrel K?