Introducing a man, Shruti said, “He is the husband of the granddaughter of the only son of my grandfather.” How is the man related to Shruti?
- (a)Son-in-law
- (b)Husband
- (c)Son
- (d)Cousin
Answer
Why
Correct — A. Collapse the chain from the top.
Rule: "the only son of my grandfather" is Shruti's father, reading the grandfather as paternal.
The granddaughter of Shruti's father is a daughter of one of his children. Taken as Shruti's own daughter, she is the woman the man married.
A daughter's husband is a son-in-law, option (a).
Why the others are wrong
- (b)Husband — Husband would need Shruti herself to be the granddaughter. Shruti is her father's daughter, one generation above his granddaughter.
- (c)Son — A son is Shruti's child by birth. The man is linked to her through marrying her daughter, which makes him an in-law.
- (d)Cousin — A cousin is the child of Shruti's uncle or aunt, in her own generation. The man married a woman one generation below Shruti.
Concept
Long chains shrink from the top. "The only son of my grandfather" is Shruti's father: her father is a son of his own father, and there is just one son.
His granddaughter sits two generations below him and one below Shruti, as her daughter or her niece. The options make her Shruti's daughter.
The man is that granddaughter's husband, so he joins the family by marriage.
Two other readings are set aside by the options. If the granddaughter were a daughter of Shruti's brother or sister, the man would be married to Shruti's niece.
If the grandfather were maternal, his only son would be Shruti's maternal uncle. Neither relation is offered, and son-in-law fits the reading where the granddaughter is Shruti's own daughter.
Key facts
- A paternal grandfather's only son is your father.
- Your father's granddaughter is your daughter or your niece.
- Your daughter's husband is your son-in-law.
Study next
Common traps
- Stopping a step short and treating the granddaughter as Shruti herself, which suggests Husband.
- Treating the man as a blood relative, Son or Cousin, though he is related through marriage.
A grandfather's only child collapses to a parent in 17 Sep 2025, 16:00, Reasoning Q.22, where the daughter of Jay's grandfather's only child is his sister.
19 Sep 2025, 09:00, Reasoning Q.10 runs the chain downward: the only daughter of C's only son is C's granddaughter.
Related PYQs
No directly related past PYQ was found.