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    A is the brother of B, who is the sister of C. A, B and C are the children of E and F. How is F related to B? Which of the below information is additi
    Question

    A is the brother of B, who is the sister of C. A, B and C are the children of E and F. How is F related to B?
    Which of the below information is additionally required to answer the above question?​​

    A.

    C is the son of F.

    B.

    E is the father of A.

    C.

    E and F have 1 son and 2 daughters.

    D.

    E and F have 2 sons and 1 daughter.

    Correct option is B

    Given
    A is the brother of B, who is the sister of C.
    A, B and C are the children of E and F.










    From the given information blood relation tree will be.






    We have no information about the gender of E and F.
    Now, we check each options.
    Option (a):C is the son of F
    No information about the gender of C.
    Option (b):E is the father of A.






    So, option b is sufficient for answer the question F is the mother of C.
    Thus, correct option is (b).

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