Question
At first, Container C and Container D contained 0.3 ℓ and 1.2 ℓ of water respectively. Some water from Container D was poured into Container C with no water spilling over. In the end, there was as much water in Container C as in Container D. How much water was poured from Container D to Container C?
3 m

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At first, Container C and Container D contained 0.3 ℓ and 1.2 ℓ of water respectively. Some water from Container D was poured into Container C with no water spilling over. In the end, there was as much water in Container C as in Container D. How much water was poured from Container D to Container C?