Question

A is the father of B.But B is the only son of A.X who is mother of B , who is the mother of B's two elder sisters.Now,one of the sister comes and introduce Y to B.Y says to B that "You are my son's classmate." B tries to recall and then finally concluded that "F who has a mother Y, is the son of his father 's brothers" How is F related to A​

Answer 1

Explanation:

X is the mother of his elder sister F is a B's father's brothers son