Question

    Find the wrong number.

    17, 25, 37, 47, 65, 81

    A 81 Correct Answer Incorrect Answer
    B 17 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 47 Correct Answer Incorrect Answer

    Solution

    4² + 1 = 17 5² = 25 6² + 1 = 37 7² = 49 8² + 1 = 65 9² = 81

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