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A cistern is filled by pipe A in 10 hours and the full cistern can be leaked out by an exhaust pipe B in 12 hours. If both the pipes are opened, in what time the cistern is full?

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time taken to full the cistern=(1/10-1/12)hrs
=1/60
=60hrs
11 years agoHelpfull: Yes(0) No(0)

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