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Assume that all mobiles are gadgets and all gadgets are machines. Which conclusion(s) follow? I. All machines are mobiles.
II. Some machines are mobiles.

Competition practiceSyllogism
  • AOnly conclusion I follows
  • BBoth I and II follow
  • COnly conclusion II follows
  • DNeither I nor II follows

Step-by-Step Solution

Mobiles ⊂ gadgets ⊂ machines, so all mobiles are machines and hence some machines are mobiles (II). Not every machine has to be a mobile, so I does not follow.
Answer: C) Only conclusion II follows

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