Multiple choice

The series given below has one wrong number find that number and answer the question. 2, 3, 5, 8, 14, 23, 41, 69

  1. 5

  2. 69

  3. 14

  4. 41

  5. 8
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B Correct answer
Explanation

This is an alternating series. Odd positions (2, 5, 14, 41) follow ×3 - 1: 2×3-1=5, 5×3-1=14, 14×3-1=41. Even positions (3, 8, 23, 68) also follow ×3 - 1: 3×3-1=8, 8×3-1=23, 23×3-1=68. The last term should be 68, not 69.

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