Question
Tank E measuring 60 cm by 24 cm by 39 cm contains 3.5 ℓ of water. It is being filled with water flowing from Tap F at 0.4 ℓ/min and Tap G at 654 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank E till it is 80% full? Correct the answer to 1 decimal place.
3 m

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Tank E measuring 60 cm by 24 cm by 39 cm contains 3.5 ℓ of water. It is being filled with water flowing from Tap F at 0.4 ℓ/min and Tap G at 654 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank E till it is 80% full? Correct the answer to 1 decimal place.