you're trying to lay out your Tshirt business office. There are three rooms in a row room, one room two room three with one door in between room one and two and one door between room two and three you need to fit your three functions into the rooms, administration, bleaching, and coloring you go between administration and bleaching 30 times a day. You go between administration and coloring 100 times a day and you go between bleaching and coloring 46 times a day if you lay out your functions in the way that minimize the total number of doors you need to open how many doors do you open each day