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    Question

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

    18      19       28       53      102   

      ?
    A 185 Correct Answer Incorrect Answer
    B 186 Correct Answer Incorrect Answer
    C 183 Correct Answer Incorrect Answer
    D 184 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    18 + 12 = 19 19 + 32 = 28 28 + 52 = 53 53 + 72 = 102 102 + 92 =  183

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