Question
A rectangular tank is 4 m long, 6.8 m wide and 3 m high. It contains water to a height of 0.4 m. How much more water is needed to fill the tank to its brim?
2 m

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A rectangular tank is 4 m long, 6.8 m wide and 3 m high. It contains water to a height of 0.4 m. How much more water is needed to fill the tank to its brim?