Question

Two statements are given followed by four conclusions I, II, III and IV. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions if any, follow from the given statements.

Statements
All dogs are books
All books are pictures.

Conclusions
I. All dogs are pictures.
II. All books are dogs.
III. All pictures are dogs.
IV. Some pictures are books.

• A. Only I and IV follow
• B. Only II and III follow
• C. Either II or III follows
• D. Either II or IV follows
• E. None of the above

Answer 1

The correct option is A Only I and IV follow

Both the premises are universal affirmative (A-type).
All dogs are books.
All books are pictures.
$A+A\Rightarrow A$-type of conclusion
All dogs are pictures.
This is conclusion I.
Conclusion IV is converse of the second premise.