The inventory on hand, and the product structure tree, for a certain product are given below. LT refers to lead time in weeks and the number in brackets ( ) refers to the number of units required.

Component	A	B	C	D	E	F
Inventory on Hand	15	10	25	30	10	15

1. If an order for A is scheduled to be shipped at the start of week 12, what is the latest week that the order can be started and still be ready to ship on time.

		4
		None of the other options are correct
		5
		8
		6

2. How many units of C are required to make one A

		8
		4
		5
		6
		None of the other options are correct

3. How many units of E are required to make one A

		None of the other options are correct
		5
		9
		6
		3

4. If 60 units of A are required, how many additional units of C should be ordered

	None of the other options are correct
		215
		200
		255
		150

5. If 60 units of A are required, how many additional units of E should be ordered?

		140
		None of the other options are correct
		150
		130
		180

A LT=1 B (2) LT=2 F (1) LT=1 C (3) LT=1 D (2) LT=2 E (2) LT=2 E (1) LT=2