a) What layout variables would you consider particularly important in designing a retail store and how these will be different to designing a fast food restaurant? Explain with the help of logical argument. b) The university's students union is going to rearrange the layout of its lounge. It has been noticed that different groups of students use the two bars and four machines in the room in different ways, as shown in Table 1. The union would like to group the facilities in twos. Which groupings would you suggest, given that the sandwich bar and drinks bar are at opposite ends of the room and cannot be moved? Clearly show vour working using table 1 1 2 5 6 Student type 3 4 X X X X x Facilities Cola Machine Drinks Bar Hot drinks machine Cigarette machine Sandwich bar Chocolate machine X X x x X X