Reasoning – Syllogism Basics (Concept, Rules & Tricks for Bank Exams)
Syllogism is one of the most important topics in reasoning. It tests your logical thinking ability using statements and conclusions.
What is Syllogism?
Syllogism consists of two or more statements followed by conclusions. You need to find whether the conclusions logically follow or not.
Example:
All A are B
All B are C
Conclusion: All A are C (True)
Basic Types of Statements
- All A are B
- Some A are B
- No A is B
- Some A are not B
Important Rules
- All + All → Definite conclusion
- Some + Some → Not definite
- No + Any → Negative conclusion
- Some conclusions are only possibilities
Solving Method
- Read statements carefully
- Make a mental Venn diagram
- Check each conclusion logically
Example Questions
Q1:
All A are B
Some B are C
Conclusion: Some A are C?
Answer: Cannot be determined
Q2:
All A are B
All B are C
Conclusion: All A are C?
Answer: True
Shortcut Tricks
- Focus on keywords (All, Some, No)
- Avoid assumptions
- Practice patterns regularly
Practice Questions
Q1: All A are B, Some B are C → Some A are C?
Q2: No A is B, Some B are C → Some A are C?
Answers
Q1: Cannot be determined
Q2: Cannot be determined
Final Tip
Practice syllogism daily to improve logical thinking. This topic is easy to score with proper understanding.
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