Statements: All fish are tortoises. No tortoise is a crocodile. Conclusions: I. No crocodile is a fish. II. No fish is a crocodile.
Correct answer: D. Both I and II follow
- A. Only conclusion II follows
- B. Either I or II follows
- C. Neither I nor II follows
- D. Both I and II follow
Explanation
STATEMENT 1, All fish = tortoise STATEMENT 2, Tortoise crocodile CONCLUSION 1, crocodile fish CONCLUSION 2, fish crocodile Both conclusions are the same and as Statement 1 says all fish are tortoise and Statement 2 perfectly denies the tortoise being a crocodile so both Conclusions FOLLOW.
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About Syllogisms
Syllogisms use categorical statements such as all, some and no to establish relationships between groups. Questions require checking whether conclusions necessarily follow from the premises, often by mental set relationships or Venn diagrams, and distinguishing valid deductions from conclusions that are merely possible.
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Statements: All fish are tortoise. No tortoise is a crocodile. Conclusions: (I) No crocodile is a fish. (II) No fish is a crocodile.
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