SSC CGL Blood Relations

CORE CONCEPT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Blood Relations questions test your ability to find the relationship between two people based on given clues. You are given a chain of relations and asked to find what Person A is to Person B. The key skill is reading carefully and drawing a family tree. Think of it like building a family chart step by step. Every clue adds one more person to your chart.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ KEY RULES TO REMEMBER

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Rule 1 — Always identify GENDER first. Words like son, father, brother, husband = MALE. Daughter, mother, sister, wife = FEMALE.

Rule 2 — Draw a diagram. Never try to solve in your head. A simple box-and-line chart saves time and prevents errors. Rule 3 — Watch for phrases like 'only child', 'only son', 'only daughter'. These limit how many siblings exist.

Rule 4 — Generation levels matter. Parents are one generation above. Grandparents are two generations above. Children are one below. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

CRITICAL RELATION TABLE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Father's or Mother's Father = Grandfather Father's or Mother's Mother = Grandmother

Father's or Mother's Brother = Uncle Father's or Mother's Sister = Aunt

Father's or Mother's Son = Brother or self Father's or Mother's Daughter = Sister or self

Son's Wife = Daughter-in-law Daughter's Husband = Son-in-law

Husband's or Wife's Brother = Brother-in-law Husband's or Wife's Sister = Sister-in-law

Brother's Son = Nephew Brother's Daughter = Niece

Sister's Son = Nephew Sister's Daughter = Niece

Uncle's or Aunt's Son or Daughter = Cousin ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

— WHAT GETS ASKED ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Type 1 — Single Statement: 'A is the brother of B. B is the mother of C. How is A related to C?' (Most common type) Type 2 — Coded Relations: '+' means brother, '-' means sister, etc. Decode first, then solve. Type 3 — Pointing/Photo Questions: 'Pointing to a photo, a man says, the person in the photo is the son of my father's only son.' (Tricky — needs careful reading) Type 4 — Puzzle Based: A group of people with multiple relations given together.

Draw a full family tree. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

— SINGLE CHAIN ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Question: A is the son of B. C is the daughter of A. D is the husband of B.

How is C related to D? Step 1 — Build the chain: B is a female (has a son A and a husband D). D is male (husband of B). A is male (son of B). C is female (daughter of A). Step 2 — Draw the tree: D married B → their son is A → A's daughter is C. Step 3 — Find relation: D is B's husband. B is A's mother. So D is A's father.

A's daughter is C. So D is C's GRANDFATHER. Answer: C is D's Granddaughter. OR D is C's Grandfather. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WORKED EXAMPLE 2 — PHOTO/POINTING TYPE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Question: Pointing to a photograph, Ravi says, 'She is the daughter of my grandfather's only son.' How is the girl in the photo related to Ravi? Step 1 — Decode 'my grandfather's only son': Grandfather's only son = Ravi's Father (since Ravi is male and father is the only son). Step 2 — 'Daughter of my father' = Ravi's Sister. Step 3 — Confirm gender: The girl is female.

Sister is female. Correct. Answer: The girl is Ravi's Sister. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ NUMBER 1