Question
A barrel can hold 18 ℓ of water. A bottle can hold 12 more litres of water than the barrel. A tank can hold 3 times as much water as the bottle. If the tank is 35 filled with water, how much more water is needed to fill the tank completely?
4 m

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A barrel can hold 18 ℓ of water. A bottle can hold 12 more litres of water than the barrel. A tank can hold 3 times as much water as the bottle. If the tank is 35 filled with water, how much more water is needed to fill the tank completely?