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Q: Which term of the series 5, 10, 20, 40, ... is 1280?
  • A. 10th/10वां
  • B. 9th/9वां
  • C. 8th/8वां
  • D. None of these/इनमें से कोई नहीं
Correct Answer: Option B -
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Explanations:

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