In the code, A × B means A is the mother of B, A ÷ B means A is the daughter of B, and A + B means A is the uncle of B. What is the relationship of D if A × D ÷ B?
In a coded relation, A + B means A is the daughter of B, A - B means A is the son of B, and A × B means A is the grandfather of B. What is the relationship of C if A + C - B?