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Reported Question / Answer
Q.) Pipe A can fill an empty tank in 30 hours while pipe 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 will the tank be filled when it was empty, initially?
1)
36 hr
2)
54 hr
3)
48 hr
4)
60 hr
5)
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Answer :
1
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