Question
A rectangular tank is filled with water to a height of 2 cm. Its rectangular base measures 20 cm by 10 cm. When 2 litres of water are poured into the tank, the water level rises to 25 of the height of the tank. Find the height of the tank.
3 m

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A rectangular tank is filled with water to a height of 2 cm. Its rectangular base measures 20 cm by 10 cm. When 2 litres of water are poured into the tank, the water level rises to 25 of the height of the tank. Find the height of the tank.