The South African company AFROS sells safety equipment to from their central warehouse in Johannesburg. AFROS apply an annual counting of the inventories, approxi- mately 55.000 articles. The supply manager is not satisfied with the record accu- racy and has decided to increase the stock-counting. Maximum 1.100 articles can be counted per day. 20% of the articles rep- resent 80% of the inventory value, A-items. Her decision is to introduce cyclic counting whereA-items should be counted once per month, B-items once every third month and C-items once per 6 months. What is maximum number of articles that can be classified as B-items? Assume 20 working days per month