Question content area

Part $1$

The demand for subassembly S is $150$ units in week $7.$ Each unit of S requires $1$ unit of T and $1$ unit of U$.$ Each unit of T requires $2$ units of$$ V$,1$ unit of$$ W$,$ and $1$ unit of X$.$ Finally, each unit of U requires $1$ unit of Y and $2$ units of Z$.$ One firm manufactures all items. It takes $2$ weeks to make$$ S$,2$ weeks to make$$ T$,2$ weeks to make$$ U$,2$ weeks to make$$ V$,2$ weeks to make$$ W$,1$ week to make$$ X$,2$ weeks to make$$ Y$,$ and $2$ weeks to make Z$.$

In addition to $150$ 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$).$