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 stars are moons.
Some moons are suns.
All suns are satellites.
Conclusions:
I. Some satellites are moons.
II. Some satellites are stars.
III. Some moons are stars.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Both conclusions I and III follow.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some satellites are moons → True (As some moons are suns, and all suns are satellites, so, some satellites are moons is also true.)
II. Some satellites are stars → False (It is possible, but no definite conclusion can be drawn.)
III. Some moons are stars → True (As all stars are moons, so, some moons are stars is also true.)
Hence, Both conclusions I and III follow.