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Statements: All keys are locks. All locks are metals. Some metals are shiny. Conclusions: I. Some keys are shiny.
II. All keys being shiny is a possibility. Which conclusion(s) follow?

Competition practiceSyllogism
  • ABoth I and II follow
  • BOnly II follows
  • CNeither I nor II follows
  • DOnly I follows

Step-by-Step Solution

The shiny metals need not include keys, so I is not definite. But keys are metals and the shiny ones could include all keys, so all keys being shiny is possible (II).
Answer: B) Only II follows

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