Question

    7 29 61 ? 211 349

    A 124 Correct Answer Incorrect Answer
    B 131 Correct Answer Incorrect Answer
    C 137 Correct Answer Incorrect Answer
    D 139 Correct Answer Incorrect Answer
    E 129 Correct Answer Incorrect Answer

    Solution

    2³ - 1 = 7 3³ + 2 = 29 4³ - 3 = 61 5³ + 4 = 129 6³ - 5 = 211 7³ + 6 = 349

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