Homework $2$

Problem $3$

The product structure tree for end item $E$ follows. The manager wants to know the material

requirements for ordered part $R$ that will be needed to complete $120$ units of $E$ by the start of week $5.$

Lead times for items are one week for level $0$ items, one week for level $1$ items, and two weeks for level $2$ items.

There is a scheduled receipt of $60$ units of $M$ at the start of week $2$ and $100$ units of $R$ at the start of week $1.$ Lot$-$

for$-$lot ordering is used.