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In a certain code language, 'P + Q' means 'P is the father of Q', 'P - Q' means 'P is the wife of Q', 'P x Q' means 'P is the brother of Q' and 'P ├╖ Q' means 'P is the sister of Q'. How is A related to E if 'A + B - C + D x E'?
Father's brother
Mother's father
Mother's brother
Father's father
Mother's father
Break down the expression into smaller pairs (A+B, B-C, C+D, DxE) and draw the family tree from left to right, focusing on the gender of the individuals.
Break down the expression into smaller pairs (A+B, B-C, C+D, DxE) and draw the family tree from left to right, focusing on the gender of the individuals.
Analyze the given expression
The expression is 'A + B - C + D x E'. Let's break it down using the definitions: A + B means A is the father of B (A is male). B - C means B is the wife of C (B is female, C is husband). C + D means C is the father of D (C is male). D x E means D is the brother of E.
Construct the relationship tree
A is the father of B. B is married to C. C is the father of D and E. Therefore, C is the father of D and E, and B (C's wife) is the mother of D and E. Since A is the father of B, A is the maternal grandfather of E.
Determine relation of A to E
A is the father of B, and B is the mother of E. A is the father of E's mother. Therefore, A is the maternal grandfather of E. Wait, checking the options provided: Father's brother, Mother's father, Mother's brother, Father's father. My deduction matches 'Mother's father'.
A: Father's brother is incorrect as A is the father of E's mother. C: Mother's brother is incorrect as A is the grandfather of E. D: Father's father is incorrect as A is the mother's father.
B is correct because A is the father of B, and B is the mother of D and E; thus, A is the mother's father of E.
In blood relation problems with long strings, always identify the gender of the subject first to eliminate wrong options immediately.
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