Component	Immediate Parent	Usage per Parent	Lead Time (weeks)	Beginning Inventory
A	none		1	0
B	A	2	2	250
C	A	1	6	500
D	A	3	3	750
E	A	2	2	750
F	B	4	2	3000
G	B	2	4	1000
H	D	3	2	5000
I	D	2	4	5000
J	E	1	8	1000
K	E	5	1	5000
L	E	2	4	2500
M	F	3	3	250
N	F	6	3	2560
O	H	2	4	0
P	K	1	2	500
Q	K	2	3	1000

1. Using the information given, calculate the replenishment time when no beginning inventory exists.