Blood Relation is an interesting and scoring topic in Reasoning. Questions from this section are generally easy to solve and can help you secure full marks in less time. In this blog, we have covered all the essential details related to the Blood Relations topic in Reasoning, including formulas, equations, examples, and more.
What are Blood Relation Questions in Reasoning?
Blood relation questions test your understanding of family relationships. These can be direct (e.g., brother, sister) or indirect (e.g., brother-in-law, maternal uncle), and usually require you to analyze statements and map relationships logically.
Why are Blood Relations Important for Competitive Exams?
The questions from the blood relation topic frequently asked in:
- SSC CGL, CHSL, MTS
- IBPS PO, Clerk, SBI PO
- RRB NTPC, ALP, Group D
- State PSCs, Police Constable Exams
Most exams include 1–2 questions, and it’s considered a scoring topic when approached with a proper method.
What Are the Core Concepts of Blood Relations?
The core concepts of the Blood Relation topic are as follows:
| Concept | Explanation |
| Direct Relations | Straightforward, like brother, mother, daughter |
| Indirect Relations | Involve multiple steps or generations |
| Gender Clues | Look for clues in pronouns like “he”, “she”, “his” |
| Reverse Mapping | Always start from the person being asked about |
| Diagram Drawing | Family tree method helps avoid confusion |
| No Assumptions | Never assume gender or relationship without clear mention |
How to Solve Blood Relation Questions Faster?
There are a few effective tricks to solve Blood Relation questions. Details of these tricks are as follows:
Use Family Tree Diagrams
Draw quick diagrams to map relationships. Keep males on one side and females on another, and connect with lines to show relationships.
Start from the Question, Not the Statement
If the question asks, “How is A related to B?”, start from B and trace toward A using the information in the statements.
Look for Keywords
Words like “only son”, “daughter of my father’s sister”, or “wife of my husband’s brother” carry strong clues identify them first.
What Are Some Common Mistakes Students Make?
Some common mistakes aspirants make while solving Blood Relation questions:
- Assuming gender based on names
- Skipping diagram drawing and trying to do it mentally
- Not reversing the relation while answering
- Ignoring generational shifts (e.g., cousin vs. uncle)
What Are Some Solved Examples of Blood Relation Questions?
Solved examples are provided below:
Example 1
Question: Rahul is the brother of the father of Neha. How is Rahul related to Neha?
Answer: Rahul is Neha’s uncle.
Explanation: Rahul → Father → Neha → So Rahul is the father’s brother → Uncle
Example 2
Question: Pointing to a man, Rina said, “He is the son of the mother of my husband.”
Answer: Brother-in-law
Explanation: Mother of husband = Mother-in-law. Her son = Husband’s brother = Brother-in-law
What Is the Expected Number of Questions in Exams?
Mostly, 1 to 2 questions from the Blood Relation topic are asked. Further details about the exact number of questions in recent exams are given below:
| Exam | Number of Questions | Difficulty Level |
| SSC CGL/CHSL | 1–2 | Easy |
| IBPS PO/Clerk | 2-3 | Moderate |
| RRB NTPC | 1 | Easy |
| State PSC | 1–2 | Varies |
Most questions are verbal, though some exams ask diagram-based puzzles as well.
What Are Related Topics I Should Revise Next?
Topics you should revise next are as follows:
- Seating Arrangement – Tricks & Examples
- Syllogism – Rules and Practice Questions
- Coding-Decoding – Shortcuts and Patterns
- Direction Sense Test – Visual Methods
Latest Blood Relation Questions in Competitive Exams (2024–25)
The recently asked Blood Relation questions in various exams are as follows:
| Exam | Question (Rephrased) | Answer |
| SSC CGL 2024/25 | In a certain code: A + B = father, A - B = mother, A×B = brother, A ÷ B = sister. How is G related to K in “G ÷ H × I – J + K”? | Mother’s mother (i.e. paternal grandmother of K) |
| SSC CGL 2024/25 | “A # B” means brother, “A @ B” means daughter, “A & B” means husband, “A % B” means wife. In D @ N @ H & Y @ F % V, how is N related to F? | Daughter’s daughter → Granddaughter of F |
| SSC CGL 2024/25 | “His father’s only son is the husband of my brother’s wife.” How is Priya related to the class monitor? | Sister |
| SSC CGL / Others 2022–24 | Pointing at a lady, “She is my paternal grandmother’s only daughter-in-law.” How is Sonia related? | Daughter |
| IBPS / PO 2024–25 | “He is the husband of the granddaughter of the father of my father.” | Husband of niece |
Final Tips for Scoring Well in This Topic
Blood relation questions are among the easiest to master with just 1–2 hours of smart revision. Keep practicing with examples and test yourself using mock questions.
- Always draw family trees
- Don’t assume gender unless it’s mentioned
- Practice daily for speed
- Use reverse tracking from the question to answer
FAQs
A: It involves questions based on family relationships like mother, brother, uncle, etc.
A: Usually 1–2 questions appear in SSC, Bank, RRB, and other exams.
A: Yes, with practice and diagram techniques, they are quick and easy to solve.
A: Drawing a family tree or diagram helps to visualize and solve accurately.
A: Yes, they are commonly asked in IBPS, SBI PO, Clerk, etc.
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