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BTGmoderatorLU
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A tank has an inlet pipe and an outlet pipe. If the outlet pipe is closed, then the inlet pipe fills the empty tank in \(8\) hours. If the outlet pipe is open, then the inlet pipe fills the empty tank in \(10\) hours. If only the outlet pipe is open, then in how many hours will the full tank become half-full?
A. \(20\)
B. \(30\)
C. \(40\)
D. \(45\)
E. \(50\)
The OA is A
A. \(20\)
B. \(30\)
C. \(40\)
D. \(45\)
E. \(50\)
The OA is A
