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:
l. All phones are laptops.
ll. All pen drives are phones.
lll. All pen drives are pens.
Conclusions:
I. All pens are phones.
II. All laptops are pens.
III. All pen drives are laptops.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Only conclusion III follows.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. All pens are phones → False (It is possible, but no definite conclusion can be drawn.)
II. All laptops are pens → False (It is possible, but no definite conclusion can be drawn.)
III. All pen drives are laptops → True (As all pen drives are phones, all pen drives are pens, and all phones are laptops, so, all pen drives are laptops is also true.)