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Q: The efficiencies of A, B and C in doing a work are in the ratio 3:5:7. Working together, they can complete a piece of work in 35 hours. In how many hours can C alone complete 32% of the work?
  • A. 28
  • B. 24
  • C. 25
  • D. 30
Correct Answer: Option B -
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Explanations:

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