Zakir plans to visit an Art gallery once in every month of 2011 except for November and December when he plans to visit three times in each of those months. A single admission costs Tk. 5.50 , a pass valid for unlimited visits in any 3-month period can be purchased for Rk 27 , and annual pass costs Tk 80. what is the least amount that Zakir can spend for his intended number of visits?