In this question, three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements:
Some flats are houses.
All houses are buildings.
All buildings are gardens.
Conclusions:
I. Some flats are gardens.
II. All flats are buildings.
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 flats are gardens → True (As some flats are houses, all houses are buildings, and all buildings are gardens, so, some flats are gardens is also true.)
II. All flats are buildings → False (It is possible, but no definite conclusion can be drawn.)
Hence, Only conclusion I follows.