Question
Mr Koh poured 9 cups of water into an empty square-based container of side 18 cm and height 20 cm. As a result, the container was only 25 filled with water. How much water did each cup contain?
2 m

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Mr Koh poured 9 cups of water into an empty square-based container of side 18 cm and height 20 cm. As a result, the container was only 25 filled with water. How much water did each cup contain?