Reference no: EM132185505
1. As a manager of an operation’s unit, your department uses 2,000 boxes of 2” screws each year. The supplier quotes you a price of $20 per box for an order size of 499 boxes or less, a price of $19 per box for orders of 500 to 999 boxes, and a price of $18 per box for an order of 1,000 or more boxes. You assign a holding cost of 20 percent of the price of the unit to this inventory. What order quantity would you use if the objective is to minimize total annual costs of holding, purchasing, and ordering? Assume ordering cost is $50/order.
2. Consider the following tasks. Tasks A, B, C, D, E, F, and G have durations of 5, 4, 2, 2, 3, 4, and 5 weeks, respectively. Task A has no predecessor. Task B has A as its predecessor. Both C and D have B as their predecessor. Task E's predecessor is C. Task F's predecessors are C and D, while Task G's predecessors are E and F. Given this information, what is the critical path?