X, Y, Z and W — Blood Relations Aptitude Question
X, Y, Z and W: X is Y's father, Z is Y's sister and W is Z's mother. How is X related to W? Answer and worked solution on CodeKairo.
- Topic: Blood Relations
- Section: Logical Reasoning
- Difficulty: Medium
- Time target: 60 seconds
Question
X is Y's father, Z is Y's sister and W is Z's mother. How is X related to W?
Options
- Brother
- Father
- Husband
- Son
Show the answer and the worked solution
Correct answer: C. Husband
Worked solution
- Z is Y's sister, so they share parents.
- X is their father and W is their mother.
- X is W's husband.
Answer: Husband.
The idea
Two people identified as the father and mother of the same children are spouses. The sibling link is what joins the two statements.
Shortcut. Y and Z are siblings, so the father of one and the mother of the other are the same couple: X is W's husband.
Common trap. "Father" — carrying the label from 'X is Y's father' across to W, who is Y's mother and so X's wife, not his child.