Question

    18      29      16      31      ?     

    33
    A 12 Correct Answer Incorrect Answer
    B 14 Correct Answer Incorrect Answer
    C 18 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer
    E 16 Correct Answer Incorrect Answer

    Solution

    18 + 11 = 29 29 - 13 = 16 16 + 15 = 31 31 - 17 = 14 14 + 19 = 33

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