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Statements: No book is a pen. All pens are pencils. Conclusions: I. No book is a pencil.
II. Some pencils are not books. Which conclusion(s) logically follow?

Competition practiceSyllogism
  • ABoth I and II follow
  • BNeither I nor II follows
  • COnly I follows
  • DOnly II follows

Step-by-Step Solution

Pens are pencils and no pen is a book, so those pencils are not books, giving II. Some pencils could still be books, so 'No book is a pencil' (I) is not definite.
Answer: D) Only II follows

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