Pipe A can fill an empty tank in 30 hours while B can fill it in 45 ho – InterviewSolution

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1.	Pipe A can fill an empty tank in 30 hours while B can fill it in 45 hours. Pipe A and B are opened and closed alternatively i. e., first pipe A is opened, then B, again A and then B and so on for 1 hour each time without any time lapse. In how many hours the tank will be filled when it was empty, initially?
Answer» 36 54 48 60 Answer :A

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