Question

    In each of the following number series, a wrong number is given, find out that number.

    217      267      304      330       348      357

    A 217 Correct Answer Incorrect Answer
    B 267 Correct Answer Incorrect Answer
    C 330 Correct Answer Incorrect Answer
    D 348 Correct Answer Incorrect Answer

    Solution

    217            267           304          330           347           357         +50            +37           +26          +17          +10                   -13            -11            -9              -7

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