Blood Relations Formula
Blood Relations formulas and a topic-wise mock test for logical reasoning placement exams like TCS NQT, Infosys, and Wipro. Revise, then practice.
Key Blood Relations Formulas
Blood Relation Basics
Blood relation questions check your ability to analyze family connections using given statements.
- Direct Relations: Father, Mother, Son, Daughter, Brother, Sister
- Indirect Relations: Uncle, Aunt, Nephew, Niece, Cousin, In-laws
- Generational Terms: Grandfather, Grandmother, Grandson, Granddaughter
Quick Approach (Formula Method)
Step 1: Break down the statement. Split into small parts like: 'A is the brother of B.'
- Step 2: Use symbols - Male = +, Female = -, Marriage = ×, Parent → Child = ↓
- Step 3: Draw a family tree - Quick diagram = fewer mistakes
- Step 4: Answer in terms of the asked person - Convert statements carefully
Common Short Tricks
Memorize these quick shortcuts for faster solving:
- 'My father's son' → Me (if male) or My brother (if from another perspective)
- 'My mother's husband' → My father
- 'My mother's brother' → My maternal uncle
- 'My father's father' → My grandfather
Examples
Practice with these common patterns:
- Example 1: 'He is my mother's only son's son' → My son
- Example 2: A is B's brother, B is C's sister, C is D's father → A is D's uncle
- Example 3: 'She is my mother's father's only daughter' → My mother
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