2. Questions Bank
  3. 7th Class
  4. Mental Ability
  5. Which one is Different

7th Class Mental Ability Which one is Different Question Bank Which one is different ?

  • question_answer
    Find the odd one out.

    A)  15                         

    B)         21

    C)  63                         

    D)         81  

    Correct Answer: D

    Solution :

     This is the only square number.


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