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Home Verbal Reasoning Number Series See What Others Are Saying!
  • Question
  • Find the next number in the given number sequence? 9, 19, 21, 43, 45, ...


  • Options
  • A. 88
  • B. 54
  • C. 91
  • D. 49

  • Correct Answer
  • 91 

    Explanation

    The given number series 9, 19, 21, 43, 45, ... follows a pattern that

    ALternately (x 2 + 1) and  (x 1 + 2)

    9 x 2 + 1 = 19

    19 x 1 + 2 = 21

    21 x 2 + 1 = 43

    43 x 1 + 2 = 45

    45 x 2 + 1 = 91

     

    Hence, the next number in the given sequence is 91.

  • Tags: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO

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