The demand for subassembly S is 100 units in week 7. Each unit of S requires

1

unit

of T and

2

units

of U. Each unit of T requires

1

unit

of V,

2

units

of W, and

1

unit

of X. Finally, each unit of U requires

2

units

of Y and

3

units of Z. One firm manufactures all items. It takes 2 weeks to make S,

1

week

to make T, 2 weeks to make U,

2

weeks

to make V,

3

weeks to make W,

1

week

to make X, 2 weeks to make Y, and

1

week

to make Z.

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Part 2

In addition to 100 units of S, there is also a demand for 20 units of U, which is a component of S. The 20 units of U are needed for maintenance purposes. These units are needed in week 6. Modify the gross material requirements plan to reflect this change (type 0 if the input box is not used).

Week 4 Lead Time (weeks) Item 1 2 N 3 4 5 6 7 S Gross req Order release 2