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A is the brother of B. C is the mother of B. D is the father of C. How is A related to D?
Grandson
Son
Grandfather
Brother
Grandson
Visualize the family hierarchy from oldest to youngest: D is Gen 1 (Parent of C), C is Gen 2 (Mother), A/B are Gen 3 (Children). D is the maternal grandfather of A.
Visualize the family hierarchy from oldest to youngest: D is Gen 1 (Parent of C), C is Gen 2 (Mother), A/B are Gen 3 (Children). D is the maternal grandfather of A.
Establish the relationship chain
Given: A is brother of B (A is male), C is mother of B (so C is mother of A), D is father of C (D is grandfather of A).
Define the relationship direction
Since D is the father of A's mother, D is the maternal grandfather of A. Therefore, A is the grandson of D.
B: A is the grandson, not the son of D (D is his mother's father). C: D is the grandfather, not A. D: A is the grandson of D, not his brother.
A is correct because D is the father of A's mother (C), making D the maternal grandfather and A the grandson of D.
Always identify the gender of the subject first. If A is the brother of B, A must be male, which eliminates any gender-inconsistent options if provided.