Question
A tank can hold 80 ℓ of water. A container can hold 10 more litres of water than the tank. A barrel can hold 4 times as much water as the container. If the barrel is 35 filled with water, how much more water is needed to fill the barrel completely?
4 m

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A tank can hold 80 ℓ of water. A container can hold 10 more litres of water than the tank. A barrel can hold 4 times as much water as the container. If the barrel is 35 filled with water, how much more water is needed to fill the barrel completely?