1. A service scheduling problem requires, among other things, to identify the number of employees that need to work during a day shift. This number of employees can be described as:

a. decision variable. b. objective function. c. constraint. d. additional condition. e. answers "a" and "c".

2. In the MRP schedule for item A, the gross requirement is 245 units, safety stock is 44 units, and amount on hand is 131 units. The inventory policy is lot-for-lot. The net requirement is equal to:

a. 420 b. 332 c. 280 d. 158 e. 70

3. The ABC company wants to choose between two locations, A and B. The fixed cost for location A is $60,000 and for location B, $40,000. The variable cost for location A is $3.00 per unit and for B, $5.00 per unit. The two locations have the same total costs at the following:

a. 10,000 dollars, with location B preferred at volume lower than 10,000. b. 10,000 units, with location B preferred at volume lower than 10,000. c. 10,000 dollars, with location A preferred at volume lower than 10,000. d. 10,000 units, with location A preferred at volume lower than 10,000. e. none of the above.