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:
All moons are suns.
No moon is a star.
Some stars are planets.
Conclusions:
I. Some suns are planets.
II. No sun is a star.
III. No planet is a moon.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2. i.e. None of the conclusions follow.
The least possible Venn Diagram for the given statements is drawn below:

Conclusions:
I. Some suns are planets → False (It is possible but no definite conclusion can be drawn.)
II. No sun is a star → False (It is possible but no definite conclusion can be drawn.)
III. No planet is a moon → False (It is possible but no definite conclusion can be drawn.)