Question
A rectangular tank was 25 filled with water. After 78 litres of water was poured out from the tank, it became 110 full. How many litres of water were there in the tank at first?
3 m

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A rectangular tank was 25 filled with water. After 78 litres of water was poured out from the tank, it became 110 full. How many litres of water were there in the tank at first?