If P $Q means P is the brother of Q; P Q means P is the mother of Q; P ∗Q means P is the daughter of Q i AB$C ∗D, who is the father ? [4376]
/Teaching & Research Aptitude/If P $Q means P is the brother of Q; P Q means P is the mother of Q; P ∗Q means P is the daughter of Q i AB$C ∗D, who is the father ? [4376]