Three Statements are given followed by Three conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
Some rooms are cages.
Some cages are enclosures.
All enclosures are houses.
Conclusions:
I. Some houses are cages.
II. All rooms are enclosures.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Only conclusion I follows.
The least possible Venn Diagram for the given statements is drawn below:

Conclusions:
I. Some houses are cages → True (As some cages are enclosures and all enclosures are houses, so, some houses are cages is also true.)
II. All rooms are enclosures → False (It is possible but no definite conclusion can be drawn.)