Question

Statements: All books are novels.
No novel is a pen.
All pens are pencils.
Conclusions: I. No book is a pen.
II. All books being pencils is a possibility.

• A. if only conclusion I follows.
• B. if only conclusion II follows.
• C. if either conclusion I or conclusion II follows.
• D. if neither conclusion I nor conclusion II follows.
• E. if both conclusion I and conclusion II follow.

Answer 1

The correct option is E if both conclusion I and conclusion II follow.

There are two cases possible.

No book is a pen using statement I and II.

This is always correct as in context of two diagrams.

All books can be pencils,

This is a possibility not always correct.

Thus both conclusions are correct.

Hence, Option E is correct.