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    Question

    Which of the following numbers will replace the question

    mark (?) in the given series? 11, 21, 47, 97, 179, ?
    A 281 Correct Answer Incorrect Answer
    B 301 Correct Answer Incorrect Answer
    C 231 Correct Answer Incorrect Answer
    D 295 Correct Answer Incorrect Answer

    Solution

    11 + (3² + 1) = 11+ 10 = 21 21 + (5² + 1) = 21+ 26 = 47 47 + (7² + 1) = 47 + 50 = 97 97 + (9² + 1) = 97 + 82 = 179 179 + (11² + 1) = 179 + 122 = 301

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