2. Questions Bank
  3. 9th Class
  4. Mental Ability
  5. Series Completion

9th Class Mental Ability Series Completion Question Bank Series Completion

  • question_answer
    Direction: In each of the following questions, there is a series. One term of the series is wrong. Find out the wrong term from four alternatives given below the series.
    2,5,12,20,30,42,56

    A) 5                              

    B) 12                             

    C) 42                             

    D) 56

    Correct Answer: A

    Solution :

    : \[{{1}^{2}}+1,\text{ }{{2}^{2}}+2,\text{ }{{3}^{2}}+3,\text{ }{{4}^{2}}+4,\text{ }{{5}^{2}}+\text{ }5,\text{ }{{6}^{2}}+6,\text{ }{{7}^{2}}+7\]


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