Correct Answer
✅ Option a — Grandson
All Options:
- AGrandson
- BSon-in-law
- CSon
- DNephew
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Detailed Solution & Explanation
1. 'This man's son's sister': The sister of the man's son is the man's daughter.
2. 'This man's son's sister is my mother-in-law': Substituting the man's daughter, we get 'The man's daughter is my (Khushi's) mother-in-law.'
3. Khushi's mother-in-law is the mother of Khushi's husband.
Since the man's daughter is the mother of Khushi's husband, the man is the maternal grandfather of Khushi's husband.
Conversely, Khushi's husband is the grandson of the man in the photograph.
Hence, **Option A** is the correct answer.
About This Chapter: Blood Relations
Paper
Paper 3: Quantitative Aptitude
Weightage
5 Marks
Key Topics
Blood Relations
This chapter covers Blood Relations and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.
View Official ICAI SyllabusExam Strategy Tip
This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.
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If X is brother of son of Y's son, then how is X related to Y?
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