Microsoft Interview Question - Two dll with same name, same version, same strong key can be placed in a folder ?

Question

Recently my friend attended interview in Microsoft. One of the interesting question is as follows.
 
 Two dll with same name, same version, same strong key can be placed in a folder ?.
 
My friend argued its not possible, two dll with same name with different version can be placed.
 
But the interviewer argued its possible in one situation.
 
Does any body know its possible or not ?
 
All your valuable comments will be appreciated !!