Question
Tank P measuring 40 cm by 24 cm by 38 cm contains 5.5 ℓ of water. It is being filled with water flowing from Tap Q at 0.7 ℓ/min and Tap R at 538 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank P till it is 90% full? Correct the answer to 1 decimal place.
3 m

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Tank P measuring 40 cm by 24 cm by 38 cm contains 5.5 ℓ of water. It is being filled with water flowing from Tap Q at 0.7 ℓ/min and Tap R at 538 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank P till it is 90% full? Correct the answer to 1 decimal place.