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Q: Priya can do a certain piece of work in 30 days. Priya and Varsha can together do the same work in 18 days, and Priya, Varsha and Nisha can do the same work together in 9 days. In how many days can Priya and Nisha do the same work?
  • A.
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  • B.
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  • C.
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  • D.
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Correct Answer: Option C -
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Explanations:

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