a) Discuss the three methods used in evaluating layouts and state the advantages and limitations of each method. b) Four products are being produced in a manufacturing cell that has four departments, A, B, C, D respectively. The daily production rate is given in Table 1. The four departments are assigned to four locations, labeled as 1, 2, 3, 4. The distances among these locations (centroids) are given by Table 1 Table 1. Production sequence and daily rate Processing sequence Product type 1 2 1 2 3 4 3 4 Table 2. Rectilinear distance among locations centroids 1 4 30 80 40 - CBDA DCA DBACB 50 80 80 2 90 - 60 60 3 10 20 Daily production 100 200 400 300 40 Answer the following questions: (a) If we put A, B, C, D at locations 1, 2, 3, 4, respectively, what is the overall material Activ handling cost? You may assume cost per unit distance per unit product Go to (b) What is the material handling cost if we swap the locations of department A and D?