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      Question

      In each of the following number series, one term is

      wrong. Find the wrong term. 4, 9, 19, 39, 83, 167, 335
      A 83 Correct Answer Incorrect Answer
      B 335 Correct Answer Incorrect Answer
      C 19 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, Pattern is x 2 + 1 4 x 2 + 1 = 9 9 x 2 + 1 = 19 19 x 2 + 1 = 39 39 x 2 + 1 = 79 79 x 2 + 1 = 159 159 x 2 + 1 = 319 So the correct series should be: 4, 9, 19, 39, 79, 159, 319 Hence, 83 is the wrong term.

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