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    Question

    What should come in the place of the Question mark (?) in the following number series?

    2, 12, 90, 240, ?,

    1260
    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

    1⁴ + 12 = 2 2⁴ - 2² = 12 3⁴ + 3² = 90 4⁴ - 4² = 240 5⁴ + 5² = 650 6⁴ - 6² = 1260

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