This document contains information to solve three problems related to material requirements planning (MRP). For the first problem, it is determined that producing 5 units of the end item A requires purchasing 5 units of item G, 30 units of item E, and 20 units of item D. For the second problem, it provides the master production schedule (MPS) for item A and develops the MRP for items B, C, and D to support this schedule over the next 8 weeks. For the third problem, it states the objective is to develop an MRP to yield 400 units of product P starting in week 7, given additional information.