2. Questions Bank
  3. 8th Class
  4. Mental Ability
  5. Series Completion

8th Class Mental Ability Series Completion Question Bank Series Completion and Inserting The Missing Character

  • question_answer
    Direction: In each of the following questions, a series is given. A term in series is missing. Find the missing term from amongst the options.
    2, 7, 27, 107, 427,?

    A) 1262                                  

    B) 1735           

    C) 1707                                  

    D) 4207

    Correct Answer: C

    Solution :

    : The pattern is, \[2\times 4-1=7,7\times 41=27,27\times 4-1=107,107\times 4-1=427.\] So, missing term \[=427\times 4-1=1707.\]


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