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    Question

    Find the wrong number in the given number series.

    3, 8, 26, 102, 398, 1639
    A 26 Correct Answer Incorrect Answer
    B 398 Correct Answer Incorrect Answer
    C 8 Correct Answer Incorrect Answer
    D 1639 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Each term: previous ├Ч 4 - a number increasing by 2

    3 ├Ч 4 - 4 = 8

    8 ├Ч 4 - 6 = 26

    26 ├Ч 4 - 8 = 102

    102 ├Ч 4 - 10 = 398

    398 ├Ч 4 - 12 = 1580 тЖР Should be 1580, not 1639

    So the correct number is 1580, and Wrong number is: 1639

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