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Three pipes A, B, and C can fill a tank in 15, 12, and 10 hours respectively. If all three are opened together, how long will they take to fill the tank?

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Three pipes A, B, and C can fill a tank in 15, 12, and 10 hours respectively. If all three are opened together, how long will they take to fill the tank?
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This question is part of a practice set

Practice the full set: Pipes and Cisterns: Formulas, Shortcuts and Solved Examples — MCQs with Answers (Set 3) (25 MCQs) →

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