Question
At first, Container Y and Container Z contained 0.9 ℓ and 2.2 ℓ of water respectively. Some water from Container Z was poured into Container Y with no water spilling over. In the end, there was as much water in Container Y as in Container Z. How much water was poured from Container Z to Container Y?
3 m

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At first, Container Y and Container Z contained 0.9 ℓ and 2.2 ℓ of water respectively. Some water from Container Z was poured into Container Y with no water spilling over. In the end, there was as much water in Container Y as in Container Z. How much water was poured from Container Z to Container Y?