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  3. 10th Class
  4. Mental Ability
  5. Series Completion

10th Class Mental Ability Series Completion Question Bank Series Completion

  • question_answer
    Direction: In each of the following questions, one term in the given number series is wrong. Find out the wrong term.
    1, 3, 10, 21, 64, 129, 256, 777

    A) 10                    

    B) 21                                

    C) 129                              

    D) 256

    Correct Answer: D

    Solution :

    : The pattern is: \[\times 2+1,\times 3+1,\times 2+1,\times 3+1,......\]


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