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Given that some pens are pencils and all pencils are erasers, which conclusion(s) follow? I. Some pens are erasers.
II. All erasers are pens.

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

Step-by-Step Solution

The pens that are pencils are also erasers, so some pens are erasers — I follows. Nothing says every eraser is a pen, so II does not follow.
Answer: D) Only I follows

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