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  3. 2nd Class
  4. Mental Ability
  5. Subtraction

2nd Class Mental Ability Subtraction Question Bank Subtraction

  • question_answer
    Observe the following.
    40 - ? = 30 + ?
    Which same number must be filled in the two boxes to make the number sentence correct?

    A) 6                                 

    B) 4         

    C)      8         

    D)      5                                             

    Correct Answer: D

    Solution :

    (40 - 6 = 34) \[\ne \] (30 + 6 = 36), (40 - 4 = 36) \[\ne \] (30 + 4 = 34) (40 - 8 = 32) \[\ne \] (30 + 8 = 38), 40 - 5 = 35 = 30 + 5 = 35 \[\therefore \]The required number is 5.


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