Question

    Find the missing number in the given number series.

    2, 5, 11, 23, 47, ?
    A 75 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 95 Correct Answer Incorrect Answer
    D 28 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    First differences:

    Pattern: ×2 +1, ×2 +1, ...

    2 × 2 + 1 = 5

    5 × 2 + 1 = 11

    11 × 2 + 1 = 23

    23 × 2 + 1 = 47

    47 × 2 + 1 = 95

    Hence, missing number is 95

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