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    Question

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

    18       40       84       172      

    ?       700
    A 348 Correct Answer Incorrect Answer
    B 355 Correct Answer Incorrect Answer
    C 350 Correct Answer Incorrect Answer
    D 359 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    18 + 22 = 40 40 + 44 = 84 84 + 88 = 172 172 + 176 =  348 348 + 352 = 700

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