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In a certain code language, 'P + Q' means 'P is the sister of Q', 'P - Q' means 'P is the son of Q', 'P x Q' means 'P is the husband of Q' and 'P ├╖ Q' means 'P is the daughter of Q'. How is A related to E if 'A + B - C x D ├╖ E'?
Son's daughter
Daughter
Daughter's daughter
Sister
Daughter's daughter
Break down the expression into components: A+B (A is sister of B), B-C (B is son of C), C*D (C is husband of D), D/E (D is daughter of E).
Break down the expression into components: A+B (A is sister of B), B-C (B is son of C), C*D (C is husband of D), D/E (D is daughter of E).
Analyze the expression component-wise
A + B: A is the sister of B. B - C: B is the son of C. C * D: C is the husband of D. D / E: D is the daughter of E.
Build the family tree
From C * D and D / E, C is the father and D is the mother of their children. Since B is the son of C (and therefore D), and A is the sister of B, A is also the daughter of C and D.
Determine the relationship
A is the daughter of C and D. Since E is the parent of D (implied by D being the daughter of E), A is the granddaughter of E.
A: Sister is incorrect as A is a generation below C/D. B: Daughter is incorrect as A is the daughter of D, not E. D: Daughter's daughter is the specific relationship, but based on the provided options in the image, C is the matching target.
C is correct because A is the daughter of D, and D is the daughter of E, making A the daughter's daughter (granddaughter) of E.
When solving complex blood relations, always draw the gender symbols (triangle for male, circle for female) to avoid confusion during multi-step chains.
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