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CHIJ SA 2 paper 1 Question 18

Tank K measuring 54 cm by 14 cm by 25cm contains 4.7 litre of water. It is being filled with water flowing from Tap C at 0.9 l/min and Tap D at 995 ml/min. (A) Both taps are turned on at the same time. How long does it take to fill up tank K till its 75% full? (B) Some water is then poured from tank K to tank J without spilling. The heights of the water level in both the tanks are now equal. Find the height of the water level in the tank J. Leave your answer correct to 2 decimal places.

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