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Statements: All doctors are engineers. Some engineers are lawyers. Conclusions: I. Some doctors are lawyers.
II. No doctor is a lawyer. Which conclusion(s) follow?

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

Step-by-Step Solution

Neither is definitely true, but conclusions I and II are contradictory and together exhaust all possibilities (either at least one doctor is a lawyer or none is). Hence either I or II follows.
Answer: D) Either conclusion I or II follows

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