CA Foundation · Quantitative Aptitude · Blood Relations
In a group of four friends—A, B, C, and D—B is the son of A's brother, C is A's daughter, and D is C's brother. What is the relationship between B and D?
B is the son of A's brother, making B A's nephew. D is A's child. Since B is related to A as nephew and D as child, B and D are cousins (children of siblings).
- AB is D's uncle
- BB is D's cousinCorrect
- CB and D are brothers
- DB is D's nephew
Explanation
A's brother is B's father, so B is A's nephew. C is A's daughter and D is C's brother, so D is also A's son. Since B is the nephew of A and D is the son of A, B and D are cousins. The distractor 'uncle' reverses the generational relationship, and 'brothers' ignores that they come from different siblings of A.
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