Blood relation questions

Reasoning Updated 11 Oct 2026

These blood relation questions test how well you can trace family links from short statements, pointing clues and coded symbols. Blood relation reasoning questions appear in almost every bank, SSC, railway and placement test, and they reward a clear method more than speed.

The 31 questions below move from easy direct statements to pointing and photograph puzzles, coded relations and multi step family puzzles. Every answer comes with the working, so you can check each link in the chain.

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Blood relation questions: direct statements (easy)

Q1. Ravi is the brother of Meena. Meena is the daughter of Kamal. How is Ravi related to Kamal?
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Answer: D. Son
Meena is Kamal's daughter and Ravi is her brother, so Ravi is also Kamal's child. Ravi is male, so he is Kamal's son.
Q2. Anil is the father of Sunil. Sunil is the brother of Rekha. Rekha is the mother of Tina. How is Anil related to Tina?
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Answer: D. Grandfather
Sunil and Rekha are siblings, so Anil is Rekha's father. Rekha is Tina's mother, so Anil is Tina's grandfather.
Q3. Geeta is the wife of Mohan. Mohan is the only son of Suresh. How is Geeta related to Suresh?
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Answer: C. Daughter-in-law
Mohan is Suresh's son. The wife of a son is a daughter-in-law, so Geeta is Suresh's daughter-in-law.
Q4. Kiran's mother is the only daughter of Mr Prakash. How is Mr Prakash related to Kiran?
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Answer: D. Grandfather
Prakash is the father of Kiran's mother. The father of one's mother is the maternal grandfather.
Q5. X is the sister of Y. Y is the brother of Z. Z is the son of W, who is a woman. How is X related to W?
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Answer: C. Daughter
X, Y and Z are siblings and Z is W's son, so all three are W's children. X is female, so she is W's daughter.
Q6. A is the son of B. C is the sister of B. How is C related to A?
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Answer: A. Aunt
C is the sister of A's parent B. A parent's sister is an aunt, so C is A's aunt.
Q7. M is the brother of N. N is the father of O. How is M related to O?
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Answer: C. Uncle
M is the brother of O's father N. A father's brother is an uncle, so M is O's uncle.
Q8. P's father is the only son of Q. Q is a man. How is Q related to P?
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Answer: A. Grandfather
Q's son is P's father. The father of one's father is the grandfather, so Q is P's grandfather.
Q9. R is the husband of S. S is the sister of T, who is a man. How is T related to R?
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Answer: A. Brother-in-law
T is the brother of R's wife S. A wife's brother is a brother-in-law, so T is R's brother-in-law.
Q10. A is the daughter of B. B is the only son of C, who is a woman. How is C related to A?
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Answer: D. Grandmother
C is the mother of A's father B. The mother of one's father is the grandmother, so C is A's grandmother.

Pointing and photograph blood relation questions (medium)

Q11. Pointing to a man, Rita said, "He is the son of my father's only son." How is the man related to Rita?
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Answer: A. Nephew
Rita is a girl, so her father's only son is her brother. The son of her brother is her nephew.
Q12. Pointing to a woman, Aman said, "Her mother is the only daughter of my mother." How is the woman related to Aman?
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Answer: B. Niece
Aman's mother's only daughter is Aman's sister. The woman is the daughter of Aman's sister, so she is his niece.
Q13. Pointing to a photograph, Vikas said, "He is the only son of my father's father." Whose photograph was it?
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Answer: B. Father
Vikas's father's father is his grandfather. The grandfather's only son must be Vikas's own father.
Q14. Pointing to a girl, Suresh said, "She is the daughter of the only son of my father's mother." How is the girl related to Suresh?
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Answer: A. Sister
The only son of Suresh's father's mother is Suresh's father. A daughter of his father is his sister.
Q15. Pointing to a boy, Meera said, "His mother is the only sister of my father." How is the boy related to Meera?
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Answer: C. Cousin
The boy's mother is Meera's father's sister, that is, Meera's aunt. The child of an aunt is a cousin.
Q16. Pointing to a lady, Arjun said, "She is the mother of my wife's only brother." How is the lady related to Arjun?
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Answer: C. Mother-in-law
The mother of Arjun's wife's brother is also the mother of Arjun's wife. A wife's mother is a mother-in-law.
Q17. Pointing to a man, Lata said, "His only brother is the father of my daughter." How is the man related to Lata?
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Answer: A. Brother-in-law
The father of Lata's daughter is Lata's husband. The man is the brother of her husband, so he is her brother-in-law.
Q18. Pointing to a photograph of a boy, Harish said, "He is the son of the only son of my mother." How is the boy related to Harish?
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Answer: B. Son
Harish is a man, so his mother's only son is Harish himself. The boy is the son of Harish.

Coded blood relation questions (medium)

Q19. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and P x Q + R, how is P related to R?
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Answer: A. Uncle
P x Q means P is the brother of Q, and Q + R means Q is the father of R. So P is the brother of R's father, that is, R's uncle.
Q20. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and J - K + L, how is J related to L?
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Answer: D. Mother
J - K means J is K's wife, and K + L means K is L's father. The wife of L's father is L's mother.
Q21. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and S / T x U, how is S related to U?
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Answer: B. Niece
S / T means S is T's daughter, and T x U means T is U's brother. The daughter of one's brother is a niece.
Q22. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and D x E / F, how is D related to F?
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Answer: B. Son
E / F means E is F's daughter, and D x E means D is E's brother. So D is also F's child, and being male he is F's son.
Q23. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and P - Q x R + S, how is P related to S?
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Answer: B. Aunt
R is S's father and Q is R's brother, so Q is S's uncle. P is Q's wife, so P is S's aunt.
Q24. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, and A + B x C, how is A related to C?
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Answer: C. Father
A + B means A is B's father, and B x C means B is C's brother. Brothers and sisters share a father, so A is C's father.
Q25. If A + B means A is the father of B, A - B means A is the wife of B, A x B means A is the brother of B and A / B means A is the daughter of B, which expression shows that M is the grandfather of N?
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Answer: B. M + O + N
M + O + N means M is O's father and O is N's father, so M is N's grandfather. M x P + N makes M an uncle, M + Q x N makes M the father, and M - R + N makes M the mother.

Multi step blood relation puzzles (hard)

Q26. A is the father of B. C is the daughter of B. D is the brother of B. E is the son of D. How is C related to E?
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Answer: B. Cousin
B and D are siblings because both are A's children. C is B's child and E is D's child, so C and E are cousins.
Q27. A is the mother of B. B is the sister of C. D is the son of C. E is the wife of D. How is E related to A?
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Answer: D. Granddaughter-in-law
C is A's child, so D (C's son) is A's grandson. E is D's wife, so E is A's granddaughter-in-law.
Q28. P is the son of Q. Q is the daughter of R. R is the husband of S. How is S related to P?
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Answer: C. Grandmother
R is Q's father and S is R's wife, so S is Q's mother. Q is P's mother, so S is P's grandmother.
Q29. Kamla is the mother-in-law of Sunita, who is the wife of Ramesh. Ramesh has no brother or sister. Mohan is Kamla's husband. How is Mohan related to Ramesh?
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Answer: C. Father
Sunita's mother-in-law is her husband Ramesh's mother, so Kamla is Ramesh's mother. Kamla's husband Mohan is therefore Ramesh's father.
Q30. X and Y are brothers. Z is the father of X. W is the daughter of Y, and V is the wife of Z. How is W related to V?
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Answer: D. Granddaughter
V is the wife of Z, the father of X and Y, so V is Y's mother. W is Y's daughter, so W is V's granddaughter.
Q31. B is the son of the only sister of A's maternal uncle. A is a girl. How is B related to A?
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Answer: A. Brother
A's maternal uncle is her mother's brother, and his only sister is A's mother. B is the son of A's mother, so B is A's brother.

How to prepare

The fastest way to solve blood relation questions is to draw a small family tree. Put each generation on its own level, write males as plus signs or squares and females as minus signs or circles, and join married couples with a double line. Then read the statement one link at a time and add it to the tree.

In pointing questions, start from the end of the sentence (my father, my mother) and work backwards to the person being pointed at. Watch for traps such as the only son of my mother, which is the speaker himself when the speaker is male. Never assume a gender that the question has not given; if the gender is missing, the answer must be a word like child, sibling or cousin.

Study tips

Draw the family tree for every question instead of solving it in your head, even when it looks easy.
Break long chains such as my father's mother's only son into small steps and replace each step with one relation.
In coded questions, write the meaning of each symbol under the expression before you build the tree.

Questions people ask

How do I solve blood relation questions quickly?

Draw a three level family tree with symbols for male and female, and add one statement at a time. With practice you can solve most exam questions in under 40 seconds.

What types of blood relation questions come in bank exams?

Bank exams ask direct statement questions, coded relation questions with symbols like +, - and x, and family puzzles with six to eight members. All three types are on this page.

What does my mother's only son mean in a blood relation question?

If the speaker is male, his mother's only son is the speaker himself. This trap appears often in pointing to a photograph questions.

Are blood relation reasoning questions asked in Hindi exams too?

Yes. Exams like SSC GD and Group D ask the same question types in Hindi. The method of drawing a family tree works in any language.

Every question on this page is written and fact-checked by the GK Quizzes team. Spotted a mistake? Tell us and we will fix it. How we make our questions.