Question
A rectangular tank measuring 28 cm by 18 cm by 20 cm was completely filled with water. After some water was poured out from the tank, the height of the water decreased from 20 cm to 9 cm. How much water was poured out from the tank?
3 m

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A rectangular tank measuring 28 cm by 18 cm by 20 cm was completely filled with water. After some water was poured out from the tank, the height of the water decreased from 20 cm to 9 cm. How much water was poured out from the tank?