A

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Q. Complete the series....
3,5,8,13,21,34,55,?

  • (A) 21
  • (B) 34
  • (C) 55
  • (D) 89
  • Correct Answer - Option(D)
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  • Filed under category Reasoning
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Explanation by: Admin

The given series is:
3, 5, 8, 13, 21, 34, 55, ?

This follows the Fibonacci sequence, where each number is the sum of the two preceding numbers:

  • 3 + 5 = 8
  • 5 + 8 = 13
  • 8 + 13 = 21
  • 13 + 21 = 34
  • 21 + 34 = 55
  • 34 + 55 = 89

So, the missing number is 89.

Correct answer:

(D) 89

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