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In a certain code language, P + Q means ‘P is the mother of Q’ P – Q means ‘P is the sister of Q’ P x Q means ‘P is the father of Q’ P ÷ Q means ‘P is the daughter of Q’ Based on the above, how is H related to G if ‘H + S – T x G ÷ P’? 3097
Father’s sister
Father’s mother
Mother’s mother
Sister
Father’s mother
Break the expression into segments from left to right: H is mother of S, S is sister of T, T is father of G, G is daughter of P.
Break the expression into segments from left to right: H is mother of S, S is sister of T, T is father of G, G is daughter of P.
Analyze H + S - T
H + S means H is the mother of S. S - T means S is the sister of T. Thus, H is the mother of both S and T.
Analyze T x G ÷ P
T x G means T is the father of G. Since T is the father of G and H is the mother of T, H is the grandmother (father's mother) of G.
Evaluate G ÷ P
G ÷ P means G is the daughter of P. Since T is the father of G and G is the daughter of P, P must be T's partner (wife). This confirms H is the mother of T, who is G's father.
A: Sister is incorrect as H is in a higher generation; C: Mother's mother is incorrect as T is the father of G; D: Sister is incorrect as H is two generations above G.
B is correct because H is the mother of T, and T is the father of G, which makes H the father's mother of G.
In blood relation expressions, always identify the gender of the subject first; if the subject (H) is female, options indicating a male relation can be immediately eliminated.