Blood Relations

Family tree mapping using generation-based symbols — the fastest way to untangle multi-generation relationship puzzles.

📖 ~4 min read 🧠 RRB NTPC / Group D — Reasoning

Symbol	Meaning
+ / ↑	Male, one generation up (father/uncle)
− / ↓	Female, one generation down (daughter/niece)
=	Married to / spouse
↔	Sibling relationship (same generation)

💡 Example: A is B's sister. C is B's mother. D is C's father. → D is A's grandfather (since C is also A's mother).

⚠️ Build the family tree one sentence at a time as you read — solving the whole puzzle after reading everything at once causes most errors.

This free chapter covers the key concepts. For complete coverage with 500+ MCQs, mock tests, and previous year analysis — grab the premium eBook.