Question

Statement : (A) All buses are trees.

(B) All tree are windows

Conclusions
I. All buses are windows.
II. All windows are buses
III. All trees are buses
IV. Some windows are buses.

• A. Only I and II follow
• B. None of the conclusions follow
• C. Only II and III follow
• D. Only I and IV follow

Answer 1

The correct option is D Only I and IV follow

From the given situation, two cases are possible.

All buses are windows.

This is always possible.

All windows are buses.

This is a possibility not always true.

All trees are buses.

This is a possibility not always true.

Some window are buses.

This is always true.

Thus, Conclusion I and IV are correct.

Hence, Option D is correct.