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4th Class Mental Ability Numbers Question Bank Number System

  • question_answer
    What Roman numerals should be subtracted from CD to get C?

    A) C                     

    B)        D

    C) XXX    

    D)        CCC

    E) None of these

    Correct Answer: D

    Solution :

    Explanation: Option (d) is correct. As we know, subtraction is the inverse process of addition. Here, \[\text{CD}-\text{C}=400-100=300\] and 300 = CCC Thus, CCC should be subtracted from CD to get C.


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