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      Question

      Find the wrong number, in the given number series.

      2, 5, 10, 17, 26, 39, 52
      A 39 Correct Answer Incorrect Answer
      B 5 Correct Answer Incorrect Answer
      C 52 Correct Answer Incorrect Answer
      D 26 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Check the differences:

      5 - 2 = 3

      10 - 5 = 5

      17 - 10 = 7

      26 - 17 = 9

      39 - 26 = 13

      52 - 39 = 13

      The pattern should be: +3, +5, +7, +9, +11, +13

      But here after 26, we get 39 (+13) instead of 26 + 11 = 37

      Wrong number: 39

      Correct number: 37

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