Question

    Select the number from the given options which will come in place of the question mark (?) in the following series. 

    15, 16, 18, 21, 25, ?

    A 31 Correct Answer Incorrect Answer
    B 32 Correct Answer Incorrect Answer
    C 29 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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