Question
Mr Gan poured 9 cups of water into an empty square-based container of side 20 cm and height 18 cm. As a result, the container was only 15 filled with water. How much water did each cup contain?
2 m

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Mr Gan poured 9 cups of water into an empty square-based container of side 20 cm and height 18 cm. As a result, the container was only 15 filled with water. How much water did each cup contain?