The following table lists the components needed to assemble an end item, lead ti

Question

The following table lists the components needed to assemble an end item, lead times, and quantities on hand.

If 21 units of the end item are to be assembled, how many additional units of E are needed? (Hint: You don't need to develop an MRP plan to determine this.)

An order for the end item is scheduled to be shipped at the start of week 14. What is the latest week that the order can be started and still be ready to ship on time? (Hint: You don't need to develop an MRP plan for this part either.)

  Item End B C D E F G H   LT (wk) 1 2 3 3 1 2 1 2   Amount on hand 0 10 10 25 12 30 5 0

Explanation / Answer

a)21 items of End Item=2*21 items of B

Reqd B=Reqd B- available B=42-10=32

32 items of B will require=2*32 items of E=64 items of E

Reqd E=64-available E=64-12=52

C=21*1-10=11, E=11*2=22

D=3*21-25=38, E=2*38=76

hence total E=52+22+76=150

b)

Item B C D E F G E H E Total LT 4 5 5 5 6 5 longest LT is 6 hence week=11-6=5 week by 5th week the order can started

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