Question
At first, Tank D and Tank E contained 0.6 ℓ and 2.9 ℓ of water respectively. Some water from Tank E was poured into Tank D with no water spilling over. In the end, there was as much water in Tank D as in Tank E. How much water was poured from Tank E to Tank D?
3 m

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At first, Tank D and Tank E contained 0.6 ℓ and 2.9 ℓ of water respectively. Some water from Tank E was poured into Tank D with no water spilling over. In the end, there was as much water in Tank D as in Tank E. How much water was poured from Tank E to Tank D?