Two 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 follow(s) from the statements.
Statements:
All cars are vehicles.
All vehicles are trucks.
Conclusions:
I) All cars are trucks.
II) All trucks are vehicles.
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. All cars are trucks → True (As all cars are vehicles, and all vehicles are trucks, so, all cars are trucks is also true.)
II. All trucks are vehicles → False (It is possible, but no definite conclusion can be drawn.)