Question
Tank Q measuring 55 cm by 21 cm by 38 cm contains 7.2 ℓ of water. It is being filled with water flowing from Tap R at 0.2 ℓ/min and Tap S at 649 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank Q till it is 70% full? Correct the answer to 1 decimal place.
3 m

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Tank Q measuring 55 cm by 21 cm by 38 cm contains 7.2 ℓ of water. It is being filled with water flowing from Tap R at 0.2 ℓ/min and Tap S at 649 mℓ/min. Both taps are turned on at the same time. How long does it take to fill up Tank Q till it is 70% full? Correct the answer to 1 decimal place.