There are 4 filling pipes and 3 emptying pipes capable of filling and – InterviewSolution

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1.	There are 4 filling pipes and 3 emptying pipes capable of filling and emptying in 12 minutes and 15 minutes respectively. If all the pipes are opened thogether and as a result they fill 10 litres of water per minute. Find the capacity of the tank.
Answer» 65 ltr 70 ltr 75 ltr 80 ltr Solution :`(4/12 - 3/15) xx t=1` `t = 15/2` MINUTE - in this time the tank will be filled. So the CAPACITY `= (15/2)xx 10 = 75` litre

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