Question

Eighty units of end item E are needed at the beginning of week 6. Twocases (30 units per case) of J have been ordered and one case is scheduled to arrive in week 3, and one in week 4. Note: J must be ordered by the case, and B must be produced in multiples of 120 units. There are 60 units of B and 100 units of J now on hand. Lead times are two weeks each for E and B, and one week for J. 3Part 2: Eighty units of end item E are needed at the beginning of week 6. Twocases (30 units per case) of J have been ordered and one case is scheduled to arrive in week 3, and one in week 4. Note: J must be ordered by the case, and B must be produced in multiples of 120 units. There are 60 units of B and 100 units of J now on hand. Lead times are two weeks each for E and B, and one week for J.

Prepare a material requirements plan for component J

Answer 1

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MRP for Component J

	Master Schedule	Week	Beg. Inv.	1	2	3	4	5	6
		Quantity							80
	E                   LT = 2 wks.		Beg. Inv.	1	2	3	4	5	6
	Gross requirements								80
	Scheduled receipts
	Projected on hand
	Net requirements								80
	Planned-order receipts								80
	Planned-order releases						80
	B(2)             LT = 2 wks.		Beg. Inv.	1	2	3	4	5	6
	Gross requirements						160
	Scheduled receipts
	Projected on hand		60	60	60	60	60	20	20
	Net requirements						100
	Planned-order receipts						120
	Planned-order releases				120

	J(4) & J(3)   LT = 1 wk.	Beg. Inv.	1	2	3	4	5	6
	Gross requirements			480		240
	Scheduled receipts				30	30	30
	Projected on hand	20	20	20	50	80	50	50
	Net requirements			460		160
	Planned-order receipts			480		180
	Planned-order releases		480		180