Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in:
Correct Answer: C. 60 minutes
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Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in:
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Pipe A fills a tank in 20 minutes and pipe B empties it in 30 minutes. If both are opened together, the tank will fill in: - MCQ Explanation
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Correct answer: C. 60 minutes