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Statements: No stone is a metal. All metals are hard. Conclusions: I. Some hard things are not stones.
II. Some stones being hard is a possibility. Which conclusion(s) logically follow?

Competition practiceSyllogism
  • AOnly II follows
  • BBoth I and II follow
  • CNeither I nor II follows
  • DOnly I follows

Step-by-Step Solution

Metals are hard and are not stones, so 'Some hard things are not stones' (I) follows. Nothing stops a stone from being hard, so II is a valid possibility.
Answer: B) Both I and II follow

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