The following table lists the components needed to assemble an end item, lead times, and quantities on hand.

Click here for the Excel Data File

a$.$ If $23$ units of the end item are to be assembled, how many additional units of E are needed? $($Hint$.$ You don't need to develop an

MRP plan to determine this.$)$

Additional units

b$.$ An order for the end item is scheduled to be shipped at the start of week $13.$ What is the latest week that the order can be started

and still be ready to ship on time? $($Hint$.$ You don't need to develop an MRP plan for this part either.$)$