Question
A rectangular container is filled with water to a height of 6 cm. Its rectangular base measures 30 cm by 10 cm. When 6 litres of water are poured into the container, the water level rises to 25 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 6 cm. Its rectangular base measures 30 cm by 10 cm. When 6 litres of water are poured into the container, the water level rises to 25 of the height of the container. Find the height of the container.