Question
Tank B measuring 60 cm by 27 cm by 22 cm contains 7.5 ℓ of water. It is being filled with water flowing from Tap C at 0.1 ℓ/min and Tap D at 531 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank B till it is 90% full? Correct the answer to 1 decimal place.
3 m

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Tank B measuring 60 cm by 27 cm by 22 cm contains 7.5 ℓ of water. It is being filled with water flowing from Tap C at 0.1 ℓ/min and Tap D at 531 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank B till it is 90% full? Correct the answer to 1 decimal place.