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 books are copies.
No copy is a pen.
Some erasers are books.
Conclusions:
I. Some copies are erasers.
II. Some pens are books.
III. No eraser is a pen.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Only conclusion I follows
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some copies are erasers → True (As some erasers are books and all books are copies, so some erasers are copies.)
II. Some pens are books → False (As all books are copies and no copy is a pen, so no pen is a book.)
III. No eraser is a pen → False (It is possible but not definite as there is no direct relation between eraser and pen.)