Question
A rectangular container is filled with water to a height of 2 cm. Its rectangular base measures 25 cm by 16 cm. When 20 litres of water are poured into the container, the water level rises to 45 of the height of the container. Find the height of the container.
3 m

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A rectangular container is filled with water to a height of 2 cm. Its rectangular base measures 25 cm by 16 cm. When 20 litres of water are poured into the container, the water level rises to 45 of the height of the container. Find the height of the container.