A

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Q. In the series 3, 9, 15,.............what will be the 21st term?

  • (A) 117
  • (B) 121
  • (C) 123
  • (D) 129
  • Correct Answer - Option(C)
  • Views: 10
  • Filed under category Reasoning
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Explanation by: Admin
Clearly, 3 + 6 = 9, 9 + 6 = 15,.............

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