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In a certain code language, 'P + Q' means 'P is the son of Q', 'P - Q' means 'P is the wife of Q', 'P x Q' means 'P is the husband of Q' and 'P ├╖ Q' means 'P is the brother of Q', How is A related to E if 'A + B - C + D x E'?
Son's son
Daughter's son
Brother
Son
Son's son
Break the expression into individual relations (A+B, B-C, C+D, DxE) and construct a family tree; the direction of blood flow determines the generation gap.
Break the expression into individual relations (A+B, B-C, C+D, DxE) and construct a family tree; the direction of blood flow determines the generation gap.
Analyze the expression A + B - C + D x E
Break down the expression: 1) A + B means A is the son of B. 2) B - C means B is the wife of C. 3) C + D means C is the son of D. 4) D x E means D is the husband of E.
Map the Family Relations
From (2) and (1), A is the son of B and C. From (3), C is the son of D, making A the grandson of D. From (4), D is the husband of E, which makes E the grandmother of A.
Determine the relation of A to E
Since D is the husband of E and A is the son of C (who is the son of D and E), it follows that A is the grandson of E. Specifically, A is the son of E's son C, making A the 'Son's son' of E.
B: Daughter's son is incorrect as A is the son of C, who is the son of D and E. C: Brother is incorrect as there is a generation gap of two levels between A and E. D: Son is incorrect as A is the grandson, not the son, of E.
A is correct because A is the son of C, and C is the son of D and E, making A the grandson (son's son) of E.
In blood relation coding questions, always determine the gender of the individuals first using the given operators to quickly eliminate options that imply the wrong gender for the subject.
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