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 waters are inks.
All glues are inks.
All inks are pens.
Conclusions:
I. All glues are pens.
II. All pens are water.
III. Some pens are glues.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Only conclusions I and III follow.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. All glues are pens → True (As all glues are inks and all inks are pens, so, all glues are pens is also true.)
II. All pens are water → False (It is possible, but no definite conclusion can be drawn.)
III. Some pens are glues → True (As all glues are inks and all inks are pens, so, some pens are glues is also true.)
Hence, Only conclusions I and III follow.