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12th Class Mental Ability Series Question Bank Question - Ranking Missing Character

  • question_answer
    Direction: In each of the following questions, identify the wrong numbers in the series. 0, 7, 28, 63, 124, 215

    A) 28

    B) 215

    C) 7

    D) 63

    Correct Answer: B

    Solution :

    \[0\,\,+\,\,7\,\,=\,\,7\] \[7\,\,+\,\,21\,\,=\,\,28\] \[28\,\,+\,\,35\,\,=\,\,63\] \[63\,\,+\,\,61\,\,=\,\,124\] \[124\,\,+\,\,87\,\,=\,\,\] Therefore, the number 215 is wrong in the series.


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