12. One unit of A is made of three units of B, one unit of C, and two units of D. B is composed of two units of E and one unit of D. C is made of on unit of B and two units of E. E is made of one unit of F. Items B, C, E, and F have one-week lead times; A and D have lead times of two weeks. Assume that lot-for-lot (L4L) lot sizing is used for items A, B, and F; lots of size 50, 50, and 200 are used for Items C, D, and E, respectively Items C, E, and F have on-hand (beginning) inventories of 10, 50, and 150, respectively; all other items have zero beginning inventory. We ar- scheduled to receive 10 units of A in week 2, 50 units of E in week 1, and also 50 units of F in week 1. There are no other scheduled receipts. If 30 units of A are required in week 8, use the low-level-coded bill-of-materials to find the necessary planned-order releases for all components.

12. One unit of A is made of three units of B, one unit of C, and two units of D. B is composed of two units of E and one unit of D. C is made of on unit of B and two thits of E.E is made of one unit of F Itens B,C,E and F have one-week lead times, A and D bave lead times of two weeks. Assume that lot-for-lot (L,4L) lot sizing is used for items A, B, and F; lots of size 50, 50, and 200 are used for ftems C, D, and E, respectivel Irems C, E, and F have on-hand (beginning) inventories of 10,50 , and 150 , respectively; all other tems have zero beginning inventory. We an scheduled to receive 10 units of A in week 2,50 units of E in week 1 , and also 50 units of F in week 1. There are no other scheduled receipts. If 3 units of A are required in week 8 , use the low-level coded bill-of-materials to find the necessary planned-order releases for all components