Three-Step Chain
Three-Step Chain problems extend the two-step concept by linking three or more relationships (e.g., 'A is father of B', 'B is sister of C', 'C is mother of D'). You must find the relationship between the first and last person. These problems test advanced logical chaining and multi-generational reasoning.
What You'll Learn
Introduction to Three-Step Chain
Three-Step Chain problems extend the two-step concept by linking three or more relationships (e.g., 'A is father of B', 'B is sister of C', 'C is mother of D'). You must find the relationship between the first and last person. These problems test advanced logical chaining and multi-generational reasoning.
Prerequisites
How to Solve Three-Step Chain Problems
Step 1: List all given relationships in order (e.g., A→B, B→C, C→D).
Step 2: Identify the starting person (A) and the ending person (D).
Step 3: Chain the relationships step by step: A→B, then B→C, then C→D.
Step 4: Combine the first two relationships to get A→C, then combine that with C→D.
Step 5: Track gender information carefully at each step.
Step 6: Draw a small family tree if needed.
Step 7: Express the final relationship.
Example Problem
Example: A is the father of B. B is the sister of C. C is the mother of D. How is A related to D? Solution: Step 1: A → B (father), B → C (sister), C → D (mother). Step 2: Combine A→B and B→C: A is father of B, B is sister of C → A is father of C. Step 3: Combine A→C and C→D: A is father of C, C is mother of D → A is grandfather of D. Answer: A is the grandfather of D.
Pro Tips & Tricks
- Write the chain as: Person1 → Rel1 → Person2 → Rel2 → Person3 → Rel3 → Person4.
- Combine from left to right, keeping track of the cumulative relationship.
- If a step involves a sibling, remember that siblings share parents.
- If a step involves a parent-child, that's a generational shift.
- The number of parent-child steps determines the generational gap (1 step = parent/child, 2 steps = grandparent/grandchild, 3 steps = great-grandparent).
- Sibling relationships do not change generation.
Shortcut Methods to Solve Faster
Common Mistakes to Avoid
Practice Worksheets
Practice makes perfect! Work through these worksheets to master Three-Step Chain. Each worksheet contains 20 questions with detailed explanations. Start from Worksheet 1 and progress through increasing difficulty levels.
Exam Importance
Three-Step Chain is an important topic for various competitive exams. Here's how frequently it appears:
Ready to Master Three-Step Chain?
Start with Worksheet 1 and work your way up to expert level! Each worksheet includes: