C=50

Table 2.10 Data for Problem 2.18 Immediate Task Time Predecessors a 6 - b 25 a 15 a 0 d e 23 b,c 12 b 5 e 36 d f g h 16 f, g i 12 h Problem 2.24 Suppose a second product model is to be simultaneously produced on the same line as that constructed for the product described in Problem 2.18. Demand for the original product is unchanged. Initial demand for the new product is forecasted to be one-fourth of that for the existing product; thus, cycle time will be decreased to 40 and precedence restrictions, but operation times for tasks a through i are (7, 22, 10, 25, 0, 6, 40, 15, 10), respectively. a) Balance the line assuming synchronous (paced) transfer. In this instance, all workstations much be able to perform all the assigned tasks for either product within the cycle time. (Hint: use the mean of t = (tiproduct1 tiproduct2 )/2 as the average time for task i to estimate PW) b) Suppose a line was to be built for just this new product, find an appropriate line balance with C= 40. Compare the balance delay for the separate-line and mixed-line solutions +