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Q: Ram can copy 60 pages in 15 hours. If Ram and Riya together can copy 180 pages in 30 hours then in how many hours will Riya copy 20 pages?
  • A. 29 Hours
  • B. 10 Hours
  • C. 12 Hours
  • D. 20 Hours
Correct Answer: Option B -
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Explanations:

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