Aggregate Planning Problem. Suppose that the beginning inventory is 0.0, the demand forecast of the first period is 1,600, and its safety stock is zero. Using the cut-and-try method for aggregate operations planning, calculate the production requirement in the first period. O 1,500 2,000 O 1,600 Question 13 1 pts Learning Curve. You have determined that a 80 percent learning curve is appropriate to produce an item, and the initial timing of the person producing the first unit was 50 minutes. How many minutes of work will be required for the 4th unit? 32 25.00 29.78 25.63 Learning Curve. You have determined that a 90 percent learning curve is appropriate to produce an item, and the initial timing of the person producing the first unit was 50 minutes. How many minutes of work will be required for the 4th unit? 50 39.15 40.50 45 A simple project listing of four activities, their predecessors and their durations are presented here: Activity Immediate Predecessor Duration (Days) A None 10 B A 5 . 11 D B, C 5 What is the duration of the entire project? 26 25 O 45 O 10