Blood Relations Questions and Answers for Competitive Exams

Blood Relations Questions and Answers for Competitive Exams

Blood Relations – Important Notes for Competitive Exams

Introduction

Blood Relations is a common topic in the Reasoning Ability section of competitive exams such as SSC, Banking, Railway, Defence, and State-level exams. Questions from this topic test a candidate’s ability to understand family relationships using given information.

Common Family Relationships

1. Basic Relations

  • Father / Mother – Parent
  • Son / Daughter – Child
  • Brother / Sister – Siblings

2. Extended Relations

  • Grandfather / Grandmother – Parent of father or mother
  • Grandson / Granddaughter – Child of son or daughter
  • Uncle – Brother of father or mother
  • Aunt – Sister of father or mother
  • Cousin – Child of uncle or aunt

3. In-Law Relations

  • Father-in-law / Mother-in-law – Parents of spouse
  • Son-in-law / Daughter-in-law – Spouse of child
  • Brother-in-law / Sister-in-law – Sibling of spouse or spouse of sibling

Gender Identification Rules

  • Words like father, son, brother, husband, uncle → Male
  • Words like mother, daughter, sister, wife, aunt → Female
  • If gender is not mentioned, do not assume

Important Keywords Used in Questions

  • Only son / only daughter → No other siblings
  • Pointing to a photograph → Indicates relationship, not direction
  • Introducing someone → Relationship must be deduced logically
  • My father’s only son → Self or brother (check gender)

Common Question Patterns

1. Single Statement Questions

Based on one sentence describing a relationship.

2. Multiple Statement Questions

More than one relation is given; all must be linked correctly.

3. Puzzle-Based Questions

Require step-by-step family tree formation.

4. Photograph-Based Questions

Relationship must be identified using indirect references.

  1. Pointing to a photograph, a man said, “She is the daughter of my grandfather’s only son.” How is the girl related to the man?
  2. A is the brother of B. C is the mother of B. D is the father of C. How is D related to A?
  3. If P is the sister of Q, Q is the son of R, and R is the wife of S, how is P related to S?
  4. Pointing to a boy, a woman said, “He is the son of my son’s only sister.” How is the boy related to the woman?
  5. A is the father of B. C is the sister of B. D is the daughter of C. How is D related to A?
  6. Introducing a man, a woman said, “He is the husband of the only daughter of my mother.” How is the man related to the woman?
  7. If A is the brother of B, B is the sister of C, and C is the father of D, how is A related to D?
  8. Pointing to a photograph, a person said, “She is my father’s wife’s mother.” How is the woman in the photograph related to the person?
  9. X is the son of Y. Y is the brother of Z. Z is the mother of P. How is X related to P?
  10. A is the mother of B. B is the brother of C. C is the daughter of D. How is D related to A?
  11. Pointing to a man, Ramesh said, “His mother is the only daughter of my mother.” How is the man related to Ramesh?
  12. P is the father of Q. Q is the brother of R. R is the daughter of S. How is S related to P?
  13. Introducing a girl, a boy said, “She is the daughter of the only son of my grandfather.” How is the girl related to the boy?
  14. A is the sister of B. B is the father of C. D is the mother of C. How is A related to D?
  15. Pointing to a woman, a man said, “She is the wife of my mother’s only son.” How is the woman related to the man?
  16. M is the brother of N. N is the wife of O. O is the father of P. How is M related to P?
  17. A is the daughter of B. B is the brother of C. C is the mother of D. How is A related to D?
  18. Pointing to a boy, a girl said, “He is the son of the only son of my grandmother.” How is the boy related to the girl?
  19. P is the sister of Q. Q is the son of R. R is the brother of S. How is P related to S?
  20. A is the father of B. B is the mother of C. D is the brother of B. How is D related to C?
  21. Pointing to a man, a woman said, “His father is my father’s son.” How is the man related to the woman?
  22. X is the wife of Y. Y is the brother of Z. Z is the father of P. How is X related to P?
  23. A is the son of B. B is the daughter of C. How is C related to A?
  24. Pointing to a photograph, a man said, “She is my wife’s brother’s mother.” How is the woman related to the man?
  25. P is the brother of Q. Q is the sister of R. R is the mother of S. How is P related to S?
Answer

Q1. Sister
Q2. Grandfather
Q3. Daughter
Q4. Grandson
Q5. Granddaughter
Q6. Brother-in-law
Q7. Uncle
Q8. Grandmother
Q9. Cousin
Q10. Husband
Q11. Son
Q12. Mother
Q13. Sister
Q14. Sister-in-law
Q15. Daughter-in-law
Q16. Uncle
Q17. Cousin
Q18. Cousin
Q19. Niece
Q20. Uncle
Q21. Brother
Q22. Aunt
Q23. Grandparent
Q24. Mother-in-law
Q25. Uncle