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Q: Three workers, X, Y and Z, can finish a job in 6 days, 9 days and 18 days, respectively. How long will it take them to finish the job if they all work together?
  • A. 3days /3 दिन
  • B. 11 days /11 दिन
  • C. 7 days /7 दिन
  • D. 15 days /15 दिन
Correct Answer: Option A -
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Explanations:

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