If A # Bis the mother of A
A $ B means A is the father of B
A % B means A is sister of B
A * B means A is the son of B
A @ B means A is brother of B and
A ! B means A is the daughter of B
In the expression P$Q#R@S, how is R related to P?
P$Q means P is the father of Q
Now Q#R will mean Q is mother of R
So we can say R's mother's father is P
So R is either Grand daughter or Grand son of P
Now R@S means R is brother of S so R is a male so R is grandson of P
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