Blood Relation Tricks: Never Lose a Mark in SSC & Railway Exams. Blood Relation is a high-scoring topic in SSC exams like CGL, CHSL, CPO, NTPC, Group D, and MTS. Usually, 2 to 3 questions are asked from this section. If you know the right techniques, you can solve these questions in less than 30 seconds without any confusion. Here is a simple guide to mastering Blood Relation tricks.
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1. The Golden Rule: The Family Tree
The best way to solve any blood relation problem is by drawing a Family Tree. Instead of imagining names, use simple symbols to represent people:
- Male: Represent with a plus (+) sign.
- Female: Represent with a minus (-) sign.
- Married Couple: Use a double line ( = ) or a double-headed arrow.
- Siblings (Brother/Sister): Use a single horizontal line ( — ).
- Generations (Parents/Children): Use a vertical line ( | ).
2. Master the Three Types of Questions
There are generally total 3 types of blood relation questions that are asked in the SSC Exams. These are pointing and narrative type of questions, coded blood relations, and family puzzles.
Type A: Pointing or Narrative Questions
These questions start with “Pointing to a photograph…” or “A man said to a woman…”.
- The Trick: Always start solving from the word “My” or “Mine”.
- Strategy: Relate the statement to yourself. Break the sentence into small parts and work backward.
- Example: “The only daughter of my father’s wife.”
- Step 1: My father’s wife = My Mother.
- Step 2: Only daughter of my mother = My Sister.
Type B: Coded Blood Relations
Here, relations are given in codes, like P + Q means “P is the mother of Q.“
Trick 1: Gender Elimination.
If the question asks for a male relation, immediately eliminate all options where the person is coded as a female.
Trick 2: Generation Gap.
Assign numbers to generations:
- Parents/Uncle/Aunt = +1
- Grandparents = +2
- Siblings/Cousins/Spouse = 0
- Children = -1
If you need to find a “Grandson,” look for an option where the total sum is -2.
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Type C: Family Puzzle
These are long paragraphs describing a family of 5–7 people.
- The Trick: Do not start with the first sentence if it is vague.
- Start with the sentence that clearly mentions the gender of a person or connects the most people.
3. The Generation Table
Use this table to quickly place people in your family tree:
| Generation | Relationship |
|---|---|
| +2 (Top) | Grandfather, Grandmother (Maternal/Paternal) |
| +1 | Father, Mother, Uncle, Aunt, Father-in-law |
| 0 (Same) | Brother, Sister, Cousin, Husband, Wife, Brother-in-law |
| -1 (Bottom) | Son, Daughter, Nephew, Niece |
4. Important Points to Remember
Never Assume Gender by Name:
- In SSC exams, a name like “Kiran” or “Deepak” does not guarantee they are female or male.
- Only fix the gender if the question says “He,” “She,” “Mother,” “Son,” etc.
Only Daughter/Son vs. Only Child:
- Only Daughter: The person can have many sons, but only one daughter.
- Only Child: The person has no other brothers or sisters.
Maternal vs. Paternal:
- Maternal: From the Mother’s side (e.g., Mama, Nana).
- Paternal: From the Father’s side (e.g., Chacha, Dada).
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Summary
To score 100% in this topic, stop trying to calculate the relations in your head. Draw the tree, use the plus/minus signs, and check the gender. With just 20–30 questions of practice, you will be able to solve these with 100% accuracy!
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All the best for your Exams!



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