Statements: (1) All books are trees. (2) All trees are lions. Conclusions: I. All books are lions. II. All lions are books. III. All trees are books. IV. Some lions are books.

Only II and III follow.
Only I and IV follow.
None of the conclusions follows.
All conclusions follow.

Correct Answer: Only I and IV follow.

Explanation:

Both the Premises are Universal Affirmative (A-type).
All books are trees. ↔ All trees are lions.
A + A ⇒ A-type of Conclusion. ''All books are lions''.
This is Conclusion I.
Conclusion IV is converse of it.

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