<u>Statements :</u> All windows are doors. No door is wall.<br><br><u>Conclusions :</u><br>I. No window is wall.<br>II. No wall is door.

Correct Answer: Both I and II follow
Since both the premises are universal and one premise is negative, the conclusion must be universal negative. Also, the conclusion should not contain the middle term. So, I follows. However, II is the converse of the second premise and thus it also holds,