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Q: P can complete a work in 4 hours. Q and R together can complete the same work in 3 hours, while P and R can complete it in 2 hours. If Q alone does this work then how much time will he take to complete this work?
  • A. 12 hours
  • B. 8 hours
  • C. 10 hours
  • D. 15 hours
Correct Answer: Option A -
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Explanations:

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