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 masks are sanitizers.
All handwashes are sanitizers.
All sanitizers are medicines.
Conclusions:
I. All handwashes are medicines.
II. All medicines are masks.
III. Some medicines are handwashes.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Only conclusions I and III follow.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. All handwashes are medicines → True (As all handwashes are sanitizers, and all sanitizers are medicines, so, all handwashes are medicines is also true.)
II. All medicines are masks → False (It is possible, but no definite conclusion can be drawn.)
III. Some medicines are handwashes → True (As all handwashes are sanitizers, and all sanitizers are medicines, so, some medicines are handwashes is also true.)
Hence, Only conclusions I and III follow.