The demand for subassembly S is

$150150$

units in week $7.$ Each unit of S requires

$22$

unitss

of T and

$11$

unitnothing

of U$.$ Each unit of T requires

$11$

unitnothing

of$$ V$,$

$22$

unitss

of$$ W$,$ and

$11$

unitnothing

of X$.$ Finally, each unit of U requires

$11$

unitnothing

of Y and

$22$

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

$11$

weeknothing

to make$$ T$,2$ weeks to make$$ U$,$

$11$

weeknothing

to make$$ V$,$

$33$

weeks to make$$ W$,$

$11$

weeknothing

to make$$ X$,2$ weeks to make$$ Y$,$ and

$22$

weekss

to make Z$.$

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Click the icon to view the product structure and the$$ time$-$phased product structure.

Part $2$

In addition to

$150150$

units of$$ S$,$ there is also a demand for

$3030$

units of$$ U$,$ which is a component of S$.$ The

$3030$

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

Lead Time

Item

$$Order release