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Statements: Some books are pens. Some pens are pencils. Conclusions: I. Some books are pencils.
II. No book is a pencil. Which of the conclusions follow(s)?

Competition practiceSyllogism
  • AOnly conclusion I follows
  • BOnly conclusion II follows
  • CBoth conclusions follow
  • DEither conclusion I or II follows

Step-by-Step Solution

The book-pencil link is undetermined, so neither follows alone; but I and II are complementary and together exhaust all cases, so either I or II follows.
Answer: D) Either conclusion I or II follows

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