Practice Syllogisms MCQs for ISSB - Pak Army Officer Selection intelligence — topic-wise sets with solved answers.
Q1. If all Bloops are Razzies and all Razzies are Lazzies, then all Bloops are definitely:
Answer: Lazzies
Explanation: Syllogism: Bloops ⊂ Razzies ⊂ Lazzies → Bloops ⊂ Lazzies. Transitive property - common in logical reasoning sections.
Q2. All Bloops are Razzies, all Razzies are Lazzies. All Bloops are definitely:
Answer: Lazzies
Explanation: Transitive syllogism: Bloops ⊂ Razzies ⊂ Lazzies. Identify the relationship between the pair, then apply the same logic to the choices.
Q3. Some officers are pilots. All pilots are trained. Conclusion: Some officers are trained.
Answer: True
Explanation: Officers ∩ Pilots ⊂ Trained → at least some officers who are pilots are trained. Valid syllogism.
Q4. Statement: All cadets are disciplined. Ali is a cadet. Conclusion: Ali is disciplined.
Answer: True
Explanation: If all cadets have a trait and Ali is a cadet, the conclusion follows directly.
Q5. If all soldiers are disciplined and Ali is a soldier, Ali is:
Answer: Disciplined
Explanation: Standard syllogism. Property of the group applies to the member. Identify the relationship between the pair, then apply the same logic to the choices.
Q6. Statements: All officers are disciplined. Some disciplined people are punctual. Conclusions: I. Some officers are punctual. II. All punctual people are officers.
Answer: Neither follows
Explanation: Officers are a subset of disciplined people, but we cannot say they overlap with punctual people. Neither conclusion is certain.
Q7. Statements: All maps are books. All books are papers. Conclusions: I. All maps are papers. II. Some papers are maps.
Answer: Both follow
Explanation: Maps are inside books and books are inside papers, so all maps are papers. That also means some papers are maps.
Q8. Statements: All captains are officers. Some officers are pilots. Conclusions: I. Some captains are pilots. II. All officers are captains.
Answer: Neither follows
Explanation: Captains are inside officers, but pilots only overlap some officers. Captains need not be pilots, and not all officers are captains.
Q9. Statements: All roses are flowers. Some flowers fade quickly. Conclusions: I. Some roses fade quickly. II. All flowers are roses.
Answer: Neither
Explanation: Roses are flowers, but the flowers that fade quickly may not include roses. Not all flowers are roses.
Q10. Statements: All soldiers are brave. Some brave people are officers. Conclusions: I. Some soldiers are officers. II. All officers are soldiers.
Answer: Neither
Explanation: Soldiers are inside brave people, but officers only overlap some brave people. Soldiers need not be officers.
Q11. Statements: All books are papers. All papers are files. Conclusions: I. All books are files. II. Some files are books.
Answer: Both
Explanation: Books are inside papers and papers are inside files, so all books are files and some files are books.
Q12. Statements: Some cats are dogs. All dogs are animals. Conclusions: I. Some cats are animals. II. All animals are dogs.
Answer: Only I
Explanation: Some cats that are dogs are animals, so some cats are animals. Not all animals are dogs.
Q13. All roses are flowers. Some flowers fade. Conclusions: I Some roses fade. II All flowers are roses.
Answer: Neither
Explanation: Roses are flowers but fading flowers need not include roses. Not all flowers are roses.
Q14. All dogs are animals. All animals need food. Conclusions: I All dogs need food. II Some animals are dogs.
Answer: Both
Explanation: Dogs are animals so they need food. Some animals are dogs is also true.
Q15. Some cats are black. All black things are dark. Conclusions: I Some cats are dark. II All dark things are cats.
Answer: Only I
Explanation: Some cats that are black are dark. Not all dark things are cats.
Q16. All teachers are educated. Some educated people are writers. Conclusions: I Some teachers are writers. II All writers are teachers.
Answer: Neither
Explanation: Teachers are educated but writers only overlap some educated people. Teachers need not be writers.
Q17. All pens are tools. Some tools are costly. Conclusions: I Some pens are costly. II All tools are pens.
Answer: Neither
Explanation: Pens are tools but costly tools need not include pens. Not all tools are pens.
Q18. All cars are vehicles. All vehicles need fuel. Conclusions: I All cars need fuel. II Some vehicles are cars.
Answer: Both
Explanation: Cars are vehicles so they need fuel. Some vehicles are cars is also true.
Q19. Some books are pens. All pens are papers. Conclusions: I Some books are papers. II All papers are pens.
Answer: Only I
Explanation: Some books that are pens are papers. Not all papers are pens.
Q20. All soldiers are men. Some men are doctors. Conclusions: I Some soldiers are doctors. II All doctors are men.
Answer: Neither
Explanation: Soldiers are men but doctors only overlap some men. Soldiers need not be doctors.
Loading...