Statements : All aeroplanes are trains. Some trains are chairs. Conclusions : I.

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Statements : All aeroplanes are trains. Some trains are chairs.
Conclusions :
I. Some aeroplanes are chairs.
II. Some chairs are aeroplanes.
III. Some chairs are trains.
IV. Some trains are aeroplanes.

Options:

A . None follows

B . Only I and II follow

C . Only II and III follow

D . Only III and IV follow

Answer: Option D
Since the middle term 'trains' is not distributed even once in the/premises, no definite conclusion follows. However, III is the converse of the second premise while IV is the converse of the first premise. So, both of them hold.

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