Directions: In the following question, three statements are given followed by four conclusions I, II, III and IV. You have to consider the given statements to be true even, if they seem to be at variance with commonly known facts. Read all the conclusions and decide which of the following logically follows from the given statements disregarding the commonly known facts.
Statements:
All sets are humanity.
Some fans are humanity.
Some birds are fans.
No bird is air.
Conclusions:
I. Some fans are sets.
II. Some fans are not sets.
III. No fan is air.
IV. Some air is fans.1
Either III or IV follows
2
Either I or II follows
3
Either I or II and either III or IV follows
4
None follows