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QA - Placement Quizzes | Pipes and Cisterns | Question 1
Two outlet pipes A and B are connected to a full tank. Pipe A alone can empty the tank in 10 minutes and pipe B alone can empty the tank in 30 minutes. If both are opened together, how much time will it take to empty the tank completely?
(A)
7 minutes
(B)
7 minutes 30 seconds
(C)
6 minutes
(D)
6 minutes 3 seconds
Answer
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