Question
Tank Y measuring 60 cm by 30 cm by 21 cm contains 5.8 ℓ of water. It is being filled with water flowing from Tap Z at 0.8 ℓ/min and Tap A at 638 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank Y till it is 85% full? Correct the answer to 1 decimal place.
3 m

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Tank Y measuring 60 cm by 30 cm by 21 cm contains 5.8 ℓ of water. It is being filled with water flowing from Tap Z at 0.8 ℓ/min and Tap A at 638 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank Y till it is 85% full? Correct the answer to 1 decimal place.