Question
Tank C measuring 59 cm by 20 cm by 20 cm contains 6.9 ℓ of water. It is being filled with water flowing from Tap D at 0.4 ℓ/min and Tap E at 724 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank C till it is 67% full? Correct the answer to 1 decimal place.
3 m

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Tank C measuring 59 cm by 20 cm by 20 cm contains 6.9 ℓ of water. It is being filled with water flowing from Tap D at 0.4 ℓ/min and Tap E at 724 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank C till it is 67% full? Correct the answer to 1 decimal place.