Question
Tank X measuring 54 cm by 20 cm by 39 cm contains 7.9 ℓ of water. It is being filled with water flowing from Tap Y at 0.3 ℓ/min and Tap Z at 550 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank X till it is 80% full? Correct the answer to 1 decimal place.
3 m

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Tank X measuring 54 cm by 20 cm by 39 cm contains 7.9 ℓ of water. It is being filled with water flowing from Tap Y at 0.3 ℓ/min and Tap Z at 550 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank X till it is 80% full? Correct the answer to 1 decimal place.