Question

    What will come in place of the question mark (?) in the following series?

    13      26       78       ?      468      936

    A 188 Correct Answer Incorrect Answer
    B 204 Correct Answer Incorrect Answer
    C 156 Correct Answer Incorrect Answer
    D 145 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    13 x 2 = 26 26 x 3 = 78 78 x 2 =  156 156 x 3 = 468 468 x 2 = 936

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