If you multiply 900 (#of bags) by 2 min, it equals 1,800 minutes. You then divide 1,800 minutes by 60 (because there are 60 minutes in an hour), you then get 30 hours. Divide 30 by 6 (Ashley plus her five friends) and you will get 5 hours. 900 x 2= 1,800/60 = 30/6=5. It will take 5 hours.