Question
At first, Pail S and Pail T contained 0.5 ℓ and 3.9 ℓ of water respectively. Some water from Pail T was poured into Pail S with no water spilling over. In the end, there was as much water in Pail S as in Pail T. How much water was poured from Pail T to Pail S?
3 m

Click button first when a symbol is required. X

At first, Pail S and Pail T contained 0.5 ℓ and 3.9 ℓ of water respectively. Some water from Pail T was poured into Pail S with no water spilling over. In the end, there was as much water in Pail S as in Pail T. How much water was poured from Pail T to Pail S?