Blood Relation – 60-Second Cheat Sheet
| Term | Same-gen | Opposite-gen | In-Law | Memory-Hook |
|---|
| Grandfather/Grandmother | 2-level up | — | — | G = 2-up |
| Uncle/Aunt | Sibling of parent | Spouse of that sibling | | U-turn = parent’s side |
| Cousin | Child of Uncle/Aunt | — | — | C = Common grand-parent |
| Nephew/Niece | Child of sibling | — | — | N = Next gen |
| Brother-/Sister-in-law | Spouse of sibling | Sibling of spouse | ✓ | “In” = marriage gate |
| Son-/Daughter-in-law | Spouse of child | — | ✓ | “In” gate-2 |
Generation Ladder (→ = 1 level)
GGF → GF → F → S → GS → GGS
GGM → GM → M → D → GD → GGD
Gender Code
- M = Male
- F = Female
- ? = Unknown (solve first)
Relation-Arrow Shortcuts (use while reading)
+ marriage→ parent→child⇄ siblings
3-Step Solver
- Draw: quick family tree with arrows
- Code: M/F/? above each name
- Count: generations up/down & check marriage nodes
Mnemonic Rhymes
- “Father’s father = Paternal; Mother’s father = Maternal”
- “Cousins share grand, siblings share parent”
- “In-law enters only through marriage gate”
Common Traps
- Cousin ≠ sibling (no shared parent)
- Uncle can be father’s brother OR mother’s brother
- “Only son” ⇒ no brothers; “only child” ⇒ no siblings at all
- Daughter-in-law is wife of son, not daughter’s hubby (that’s son-in-law)
Rapid-Fire MCQs
1. Pointing to a man, a woman says, “His mother is the only daughter of my mother.” How is the woman related to the man?
Answer: **Mother**2. A is B’s sister. C is B’s mother. D is C’s father. How is D related to A?
Answer: **Grandfather**3. If X is the brother of the son of Y’s son, how is X related to Y?
Answer: **Grandson**4. Introducing a girl, Raj says, “She is the daughter of my grandfather’s only son.” How is the girl related to Raj?
Answer: **Sister**5. How is my father’s brother’s daughter related to me?
Answer: **Cousin**6. My mother’s only brother’s wife is my ___.
Answer: **Aunt**7. A woman’s husband’s sister is her ___.
Answer: **Sister-in-law**8. B is the son of C but C is not the mother. Who is C?
Answer: **Father**9. How is grandson of my father related to me if I am the only son?
Answer: **Son**10. If P × Q means P is father of Q; P – Q means P is sister of Q, then in P × Q – R, how is P related to R?
Answer: **Father**
BETA
