Blood relation questions are a crucial part of logical reasoning sections in competitive exams, placement tests, and interviews. These questions test your ability to understand family relationships and solve problems using logical deduction.
In this guide, you’ll learn key concepts, common question types, and quick-solving techniques to master blood relation problems.
Blood relation questions involve family connections and require you to determine relationships based on given statements. These questions often use terms like father, mother, son, daughter, brother, sister, uncle, aunt, cousin, and in-laws.
Example:
“A is the father of B. B is the sister of C. How is A related to C?”
Answer: A is the father of C.
Understanding the basic family structure is essential for solving these questions.
Relation | Description |
---|---|
Father & Mother | Parents of a person |
Son & Daughter | Children of parents |
Brother & Sister | Siblings (children of the same parents) |
Uncle & Aunt | Siblings of a person’s parents |
Nephew & Niece | Son/daughter of one’s sibling |
Grandparents | Parents of one’s father or mother |
Cousin | Child of one’s uncle or aunt |
In-laws | Relatives through marriage (e.g., father-in-law, mother-in-law) |
These involve straightforward relationships between family members.
Example:
“If A is the father of B, and B is the mother of C, how is A related to C?”
Answer: A is the grandfather of C.
Tip: Draw a simple family tree for clarity.
Here, relationships are represented using symbols.
Example:
“A + B means A is the father of B.”
“B – C means B is the sister of C.”
“C * D means C is the mother of D.”
Find the relationship between A and D:
Since A is B’s father and C is B’s sibling, A is also C’s father. Since C is D’s mother, A is D’s grandfather.
Answer: A is the grandfather of D.
Tip: Always decode symbols step by step to avoid confusion.
These involve complex family trees with multiple relationships.
Example:
“A is the father of B. B is married to C. C is the mother of D. How is A related to D?”
Solution:
Since B and C are married, B is D’s father. Since A is B’s father, A is D’s grandfather.
Answer: A is the grandfather of D.
Tip: Use diagrams to simplify multi-step relationships.
✔ Draw Family Trees – Visually representing relationships helps avoid confusion.
✔ Break Down Statements – Solve step by step instead of reading everything at once.
✔ Identify Gender – Many questions depend on knowing whether a person is male or female.
✔ Practice Coded Relations – Get comfortable with symbolic representations.
✔ Memorize Key Relations – Familiarity with common family terms will speed up problem-solving.
❌ Assuming Gender Without Clues – If the question doesn’t specify gender, don’t assume.
❌ Ignoring Hidden Relationships – Some relations may not be explicitly mentioned but are implied.
❌ Misinterpreting “My” and “Your” – Pay attention to the perspective in the question.
Blood relation questions may seem tricky, but with regular practice, they become much easier. By using structured approaches like family trees and step-by-step breakdowns, you can solve even the most complex relationship puzzles efficiently.