The 3-month forecasted demand of a product group consisting of X and Z models, and the number
Question:
The 3-month forecasted demand of a product group consisting of X and Z models, and the number of month workdays are as follows.
Months 1 2 3
Demand qty. 720 675 620
Number of workdays 20 18 22
At the beginning of the planning period, there is a total of 200 inventory, 75 of which are of X models and 125 of which are of Z models. The daily average production rate is 32 pieces, and the firm pursues the level strategy (fixed production rate).
1-What are the monthly production amounts in the 3-month Aggregate Production and Sales Plan of the company?
–If the firm was pursuing a "chase strategy" (variable production rate by demand), how many would the monthly production amounts be in the Aggregate Plan?
-How much are the end-of-month inventories in the 3-month Aggregate Production and Sales Plan? —
If the factory operates 16 hours a day in two shifts, what are the monthly available production capacities (in standard hours)?
According to the past years' records, the factory operates with 90% efficiency and 95% benefit. Accordingly, what is the monthly net available capacities of the factory?
2-The factory has to allocate 0.2 hours to produce 1 unit of X model and 0.6 hours for the Z model. What is the average required standard time to produce 1 unit of X or Z model? (compute according to the shares of models in total demand)
3-What are the monthly required capacities (in standard hours)? (use the average required standard time computed in Question 11)
4-Since the factory is operating at 90% efficiency, what are the monthly net required capacities? (compute with the monthly required hours found in Question 12)
Introduction to Operations Research
ISBN: 978-1259162985
10th edition
Authors: Frederick S. Hillier, Gerald J. Lieberman