Previous Year’s Blood Relations Questions Asked in RRB PO Exam

Blood Relations are one of the most important topics in the RRB PO Reasoning section. Questions from this topic are most frequently asked in the exams. 3 to 5 blood relation questions have been previously asked in the RRB PO Prelims exam every year. They are also asked in the RRB PO Mains exam. These questions are of different types, and candidates must know how to solve them within seconds. Previous Year’s Papers are an important part of RRB PO exam preparation. Here we have brought to you a compilation of all the blood relation questions asked in the RRB PO exam from 2017 to 2024, which you can download for free. Additionally, we have explained in detail how to solve blood relations questions quickly in the exam.

What are different types of Blood Relation Questions?

There are four major types of blood relation questions as provided below:

1. Direct/Descriptive: Statements directly describe relationships.
2. Puzzles: Complex data with multiple persons and relationships.
3. Coded: Relationships are given in symbols.
4. Dialogue-based: One person talks about another person (e.g., “She is the daughter of my father’s brother”).

RRB PO Previous Year Blood Relation Questions with Solutions

A complete compilation of RRB PO Previous Year Questions of Blood Relations asked in the Reasoning section of the RRB PO exam from 2017 to 2024 is provided to you below. You can download the free PDF and practice these questions. As they are the most repeated questions in the exam, you should learn to solve them quickly and accurately.

Question 1: [2018]

Study the following information carefully and answer the given questions: F is the husband of G. K is the mother-in-law of G. H is the Father of F. M is the mother of H, P is the mother of K and B.

1. If Y is the father of H then how is Y related to M?

(a) Mother

(b) Father

(c) Sister

(d) Brother

(e) Husband

2. How is P related to F?

(a) Grandfather

(b) Aunt

(c) Mother

(d) Grandmother

(e) Wife

3. How is B related to H?

(a) Sister

(b) Brother

(c)Husband

(d) Can’t be determine

(e) Wife

Question 2: [2019]

Direction: Answer the questions based on the information given below.

Eight members are living in a family. B is the only son of A. E is wife of F. E is sister of B and C. G is daughter in law of H. D is son of E. H and C are of same gender. Only married couples have children.

1. How is D related to H?

A) Granddaughter

B) Son

C) Son-in-law

D) Grandson

E) None of the above

2. How is G related to A?

A) Daughter-in-law

B) Mother

C) Mother-in-law

D) Sister

E) None of the above

Question 3: [2020]

Directions: Answer the questions based on the information given below:

There are seven members (A, B, C, D, E, F and G) in a family which consists of three generations. There are two married couples in the family. B is the only daughter of C, who is the son in law of A. D is the only daughter of E, who is the grandfather of G. D has 3 children. There is no single parent in the family.

1. How is F related to wife of father of C’s wife?

A) Grand son

B) Son

C) Nephew

D) Son-in-law

E) None of the above

2. How is B related to E?

A) Daughter

B) Daughter-in-law

C) Niece

D) Grand Daughter

E) None of the above

Question 4: [2021]

Answer the questions based on the information given below:

There is eight members Avi, Bob, Chi, Dev, Ema, Fin, Gex and Hem in the family of three generations. No single person in the family is a parent. There are only two members in the first generation. Father of Chi is married to Bob’s sister. Fin is father of Gex, who is not in third generation. Gex has a brother-in-law, but he is not Bob. Ema is only granddaughter of Avi. Dev is unmarried male. Bob and Dev are not siblings.

1. Who is father of Chi?

A) Bob

B) Gex

C) Fin

D) Hem

E) Cannot be determined.

2. Which of the following is definitely true?

A) Chi is sister of Ema

B) Dev is brother-in-law of Hem

C) Bob is daughter of Fin

D) Chi is grandson of Avi

E) Gex has a sister

Question 5: [2022]

Directions: Answer the questions based on the information given below.

Nine persons P, Q, R, M, A, B, C, D, and Z are members of a family consisting of three generations and three married couples. C is the mother-in-law of A, who is the mother of Z and P. M is the only brother-in law of A. D is the mother of Q, who is the daughter of M. P is the only grandson of B. R has a brother.

1. How is Q related to C?

A) Grandson

B) Daughter

C) Grand Daughter

D) Niece

E) None of the above

2. How many female members are in the family?

A) Three

B) Four

C) Five

D) Six

E) None of the above

3. Which is a true statement regarding Z and M?

A) Z is the nephew of M

B) Z is the niece of M

C) Z is the son of M

D) Z is the daughter of M

E) None of the above

Blood Relation Questions Solving Techniques for RRB PO Exam

Below, we have provided some solving techniques that you can use to solve blood relations questions efficiently.

1. Draw Family Tree / Diagram

• Use symbols:
  • Male → □ or M
  • Female → ○ or F
  • Marriage → =
  • Siblings → horizontal line
  • Children → vertical line below
• Example: A (M) --- B (F) | C (M)

2. Identify the Point of View

• Find out who is speaking and what is being asked.
• If the question says “How is X related to Y?”, start with Y and trace the relationship to X.

3. Decode Step-by-Step

• Break long statements into parts.
• For example:
  “A is the sister of B. B is the father of C. How is A related to C?”
  → A → sister of B
  → B → father of C
  → A is aunt of C.

4. Use Substitution for Coded Relations

• For coded questions:
  • A + B → A is the mother of B.
  • A - B → A is the brother of B.
  • A * B → A is the sister of B.
  • A/B → A is the father of B
• Decode each relation one by one, then draw the tree accordingly.

5. Practice Reverse Questions

• If asked: “How is X related to Y?”, draw from Y to X, not X to Y.

Additional Tips for Solving Blood Relation Questions

• Practice 5–10 questions daily.
• Focus on puzzles with 4–6 family members.
• Revise common relations:
  • Father’s brother → Uncle
  • Sister’s son → Nephew
  • Wife’s father → Father-in-law
• Use shorthand notations.
• Eliminate wrong options quickly.
• Don’t assume gender unless specified.

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