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    Question

    Find the wrong number in the given number series.

    2, 5, 11, 23, 47, 97
    A 5 Correct Answer Incorrect Answer
    B 47 Correct Answer Incorrect Answer
    C 23 Correct Answer Incorrect Answer
    D 97 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Pattern: each term = (previous term × 2) + 1 2 → 2×2+1 = 5 5 → 5×2+1 = 11 11 → 11×2+1 = 23 23 → 23×2+1 = 47 47 → 47×2+1 = 95 So last term should be 95, not 97. Wrong term = 97

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