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Q: A tank is filled in 4 hours by three pipes A, B and C. The pipe C is twice as fast as B and pipe B is thrice as fast as A. How much time will pipe A alone take to fill the tank?
  • A. 25 hours
  • B. 40 hours
  • C. 32 hours
  • D. 30 hours
Correct Answer: Option B -
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Explanations:

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