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    Question

    Find the wrong number in the given number series.

    30, 60, 130, 210, 350, 520
    A 520 Correct Answer Incorrect Answer
    B 60 Correct Answer Incorrect Answer
    C 210 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 3 3 + 3 = 30 4 3 - 4 = 60 5 3 + 5 = 130 6 3 - 6 = 210 7 3 + 7 = 350 8 3 - 8 = 504 Therefore, 504 should come in place of 520

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