Blood Relations for SSC CGL
Master Family Relationship Logic
1. Introduction
Blood Relation questions are a common topic in SSC CGL reasoning. They test your ability to analyze family relationships and determine connections logically.
These questions are scoring because once you understand the family structure, solutions become straightforward.
2. Definition
Blood Relation questions involve figuring out relationships between family members based on the information provided in the question. The relationship can be direct (father, mother, brother) or indirect (uncle, cousin, nephew).
Example: "Pointing to a man, Ravi says, 'He is my father's brother's only son.' How is the man related to Ravi?"
Solution: Father's brother = Uncle, Uncle's son = Cousin
Answer: Cousin
3. Types of Blood Relation Questions
Direct Relations:
Father, Mother, Brother, Sister, Son, Daughter.
Example: "A is the father of B. How is B related to A?" → Answer: Son/Daughter
Indirect Relations:
Uncle, Aunt, Nephew, Niece, Cousin.
Example: "B is C's mother's brother's son. How is B related to C?" → Answer: Cousin
Mixed Relations:
Combination of direct and indirect relations in a single question.
Example: "A is the sister of B. B is the mother of C. How is A related to C?" → Answer: Maternal Aunt
Gender-Neutral/Tricky Wording:
Sometimes the question uses words like 'only son,' 'elder brother,' etc.
Careful reading is required to avoid mistakes.
4. Previous Year SSC CGL Examples
2018 Tier I: "Pointing to a man, Ravi said, 'He is the father of my mother's brother.'"
Answer: Grandfather
2019 Tier I: "A is B's brother. B is the mother of C."
Answer: Maternal Uncle
2020 Tier I: "P is the daughter of Q. Q is the son of R."
Answer: Granddaughter
Practicing previous year questions improves your ability to visualize family trees quickly.
5. Strategy to Approach Blood Relation Questions
- Identify key people: Start with the person mentioned first
- Draw a family tree: It makes complex relationships easier to track
- Follow the chain: Work step by step, from direct to indirect relations
- Pay attention to wording: Words like 'only son,' 'elder brother,' or 'maternal' are important
- Practice regularly: Daily 5–10 questions will improve speed and accuracy
6. Quick Recap
- Blood Relation questions test logical reasoning about family relationships
- Types: Direct, Indirect, Mixed, and Tricky worded relations
- Drawing a family tree is the fastest way to solve these questions
- Regular practice ensures accuracy under exam pressure
7. Practice Questions
Try solving these to test your understanding:
1. Pointing to a woman, Raju said, "She is my mother's only daughter." How is she related to Raju?
2. A is B's father. C is B's son. How is C related to A?
3. X is the brother of Y. Y is the mother of Z. How is X related to Z?
4. P is the daughter of Q. Q is the sister of R. How is P related to R?
5. Pointing to a man, Ravi says, "He is my father's father's only son." How is he related to Ravi?
Click for Answers
1. Sister (Raju's mother's only daughter is Raju's sister)
2. Grandson (C is son of B, B is son of A)
3. Maternal Uncle (X is brother of Y who is mother of Z)
4. Niece (P is daughter of Q, Q is sister of R)
5. Father (Father's father's only son is father)
Attempt these using a quick family tree before checking answers.
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