Question
At first, Pot A and Pot B contained 0.7 ℓ and 1.5 ℓ of water respectively. Some water from Pot B was poured into Pot A with no water spilling over. In the end, there was as much water in Pot A as in Pot B. How much water was poured from Pot B to Pot A?
3 m

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At first, Pot A and Pot B contained 0.7 ℓ and 1.5 ℓ of water respectively. Some water from Pot B was poured into Pot A with no water spilling over. In the end, there was as much water in Pot A as in Pot B. How much water was poured from Pot B to Pot A?