Question

    Select the number from among the given options that can replace the question mark (?) in the following series.

    33, 39, ?, 57, 69, 87

    A 51 Correct Answer Incorrect Answer
    B 53 Correct Answer Incorrect Answer
    C 55 Correct Answer Incorrect Answer
    D 59 Correct Answer Incorrect Answer

    Solution

    11 X 3 = 33 13 X 3 = 39 17 X 3 = 51 19 X 3 = 57 23 X 3 = 69 29 X 3 = 87

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