Question
A container can hold 21 ℓ of water. A pot can hold 10 more litres of water than the container. A bottle can hold 3 times as much water as the pot. If the bottle is 13 filled with water, how much more water is needed to fill the bottle completely?
4 m

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A container can hold 21 ℓ of water. A pot can hold 10 more litres of water than the container. A bottle can hold 3 times as much water as the pot. If the bottle is 13 filled with water, how much more water is needed to fill the bottle completely?