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0 / 60 seg.
If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?
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Clue
D IS EITHER THE NEPHEW OR NIECE OF A. A IS THE UNCLE OF D. D IS EITHER THE SON OR DAUGHTER OF C. A, B AND C ARE SIBLINGS AND A IS A MALE. C'S SON OR DAUGHTER HAS TO BE THE NEPHEW OR NIECE OF D
B IS THE SISTER-IN-LAW OF E. A IS FATHER OF C AND C IS SISTER OF D. SO, A IS FATHER OF D. BUT D IS SON OF B. SO, B IS THE MOTHER OF D AND WIFE OF A. ALSO, E IS THE BROTHER OF A. SO, B IS THE SISTER-IN-LAW OF E
CHARLIE IS FEMALE AND IS OF THE OPPOSITE GENDER. IF JORDAN IS SAM'S ONLY DAUGHTER, THEN JORDAN CANNOT HAVE A SISTER AND STATEMENT 2 BECOMES FALSE. THEREFORE, JORDAN MUST BE SAM'S BROTHER AND A MALE. FROM STATEMENT 1, CHARLIE'S ONLY SON CANNOT BE SAM AS JORDAN IS SAM'S BROTHER, SO CHARLIE'S ONLY SON IS ALEX. FOR STATEMENT 2, WE KNOW THAT ALEX IS A MALE, SO ALEX CANNOT BE JORDAN'S SISTER. THEREFORE CHARLIE IS JORDAN'S SISTER. IT'S CLEAR THAT SAM, JORDAN AND CHARLIE ARE SIBLINGS AND ALEX MUST BE CHARLIE'S ONLY SON
JILL IS JEAN'S MOTHER. ALTERNATIVELY, JEAN IS THE DAUGHTER OF JACK'S WIFE'S BROTHER OR SISTER
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