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.

A. None follows

B. Only I and II follow

C. Only II and III follow

D. Only III and IV follow

Answer: Option D

Solution(By Examveda Team)

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.