Paper:

The density of paper ranges from 250 kg/m3 (16 lb/cu ft) for tissue paper to 1,500 kg/m3 (94 lb/cu ft) for some speciality paper. Printing paper is about 800 kg/m3 (50 lb/cu ft).

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What is the common density of printing paper?
800 kg/m3