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Statements: All cats are dogs. Some dogs are birds. Conclusions: I. Some cats are birds.
II. Some birds are dogs. Which of the conclusions follows?

Competition practiceSyllogism
  • AOnly conclusion I follows
  • BBoth conclusions I and II follow
  • CNeither conclusion follows
  • DOnly conclusion II follows

Step-by-Step Solution

'Some dogs are birds' converts to 'some birds are dogs', so II follows. The dogs that are birds need not include any cat, so 'some cats are birds' is not guaranteed — I does not follow.
Answer: D) Only conclusion II follows

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