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      Question

      In the given number series, find the wrong number.

      4, 9, 19, 39, 79, 159, 319
      A 4 Correct Answer Incorrect Answer
      B 79 Correct Answer Incorrect Answer
      C 39 Correct Answer Incorrect Answer
      D 159 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Each number ×2 +1:

      4 × 2 + 1 = 9

      9 × 2 + 1 = 19

      19 × 2 + 1 = 39

      39 × 2 + 1 = 79

      79 × 2 + 1 = 159

      159 × 2 + 1 = 319

      Therefore, the series is correct

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