Question
At first, Pot P and Pot Q contained 0.6 ℓ and 2.8 ℓ of water respectively. Some water from Pot Q was poured into Pot P with no water spilling over. In the end, there was as much water in Pot P as in Pot Q. How much water was poured from Pot Q to Pot P?
3 m

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At first, Pot P and Pot Q contained 0.6 ℓ and 2.8 ℓ of water respectively. Some water from Pot Q was poured into Pot P with no water spilling over. In the end, there was as much water in Pot P as in Pot Q. How much water was poured from Pot Q to Pot P?