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    Question

    2, 12, 90, 240, ?,

    1260 What should come in the place of the Question mark (?) in the following number series?
    A 354 Correct Answer Incorrect Answer
    B 420 Correct Answer Incorrect Answer
    C 760 Correct Answer Incorrect Answer
    D 650 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    1тБ┤ + 12 = 2 2тБ┤ - 2² = 12 3тБ┤ + 3² = 90 4тБ┤ - 4² = 240 5тБ┤ + 5² = 650 6тБ┤ - 6² = 1260

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