Situation: I am sitting on a chair facing the table with a window behind me and no other chairs in the same row on my right.
Alternative situations: Leaning at the table and passing the documents, I realize I need to bring more copies from a cabinet in my two o'clock direction. When I grade assignments I always sit here at the corner of the computer station with these two chairs to my right in case I need to have a meeting with one of my students.
Question: Can the amount of chairs that is not next to the desk I am facing divided by three?