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5th Class Mental Ability Blood Relations Question Bank Blood Relations

  • question_answer
    A is the brother of B. A is the brother of C. To find what is the relation between B and C, what minimum information from the following is necessary?
    1. Sex of C                  
    2. Sex of B

    A)  only 1             

    B)  only 2

    C)  Either 1 or 2   

    D)  Both 1 and 2

    Correct Answer: D

    Solution :

      Without knowing the sex of C, we can't be determined whether B is sister of C or B is brother of C. Similarly without knowing the sex of B we can't be determined whether C is sister of B or C is brother of B. Therefore, both (1) and (2) are necessary.


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