A product is composed of subassembly Sll and part M23. Subassembly S11 is composed of subassembly S21 and part M24 and part M25. Subassembly S21 is composed of part M26, part M27 and part M25 All parts and subassemblies produce and move in one lot of 200 units. Following are the times for each operation of the item. Standard Time (days per lot) Subassembly Subassembly M27 M25 S11 S21 2 3 Final Assembly Item M23 M26 M24 5 1 7 6 Operation 2. 3 5 2 9 0 9 3 10 3 1 4 2 ? Assume that only one machine is assigned to operation 1 and 2 and two identical machines are assigned to operation 3 of each part. This manufacturing company has an order for 200 units of the final product. (a) Determine the time for the third operation of part M25 if order is completed in 37 days. Now assume that standard time of the third operation of part M25 is 4 days. (6) Draw a backward schedule. (c) Suppose that the company wants to reduce the total manufacturing lead time as much as possible. For that purpose, the company wants to use operations overlapping for one of the two components M26 and M27. Assume that the whole lot of 200 units is divided into two sublots. Which component should be selected? What should be the size of each sublot? What will be the new total manufacturing lead time?