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Statements: Some books are pens. No pen is a pencil. Conclusions: I. Some books are not pencils.
II. All pens are books. Which of the conclusions follows?

Competition practiceSyllogism
  • ANeither conclusion follows
  • BOnly conclusion I follows
  • COnly conclusion II follows
  • DBoth conclusions I and II follow

Step-by-Step Solution

The books that are pens cannot be pencils (no pen is a pencil), so some books are not pencils — I follows. 'All pens are books' overstates the given 'some books are pens' and need not hold, so II does not follow.
Answer: B) Only conclusion I follows

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