it takes 6 minutes to fill a certain pool and 18 minutes to drain out the same pool when it is full. with the drain open and the pool empty, how long would it take to fill the pool
answer should not copied from Google or any app
answer is 9 how is it answer
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Revised Filling rate is now just 1/18 per hour for the 6 hours. Answer: a total time was 6 hours + 4 hours = 10 hours to fill the pool from empty to full.
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beacause the flow of water is high cause the drain is particularly small cause the amount of water flows and its gets full in 9 min
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