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Illustration 3 The components A and B are used as follows

Illustration 3 The components A and B are used as follows: Normal usage Maximum usage Minimum usage Reorder Quantity Reorder period 300 units per week each 450 units per week each 150 units per week each ... A 2400 units: B 3.600 units. A 4 to 6 weeks, B 2 to 4 weeks. Calculate for each component: (a) Re-order Level (b) Minimum Level (c) Maximum Level (d) Average Stock Level.