Problem 12-3 The following table lists the components needed to assemble an end
ID: 421640 • Letter: P
Question
Problem 12-3 The following table lists the components needed to assemble an end item, lead times (in weeks), and quantities on hand Amount on Hand Item End Lead Time Direct Components 18 23 28 B (2) (3) G (2), B(2) H(4), B (2) a. If 43 units of the end item are to be assembled, how many additional units of B are needed? (Hint You don't need to develop an MRP plan.) Additional units b. An order for the end item is scheduled to be shipped at the start of week 11. 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.) The latest weekExplanation / Answer
(a) For 43 units of end item we need 86L, 43C and 129K
On hand, 8L, 18C and 23K.
Items needed = (86-8)L, (43-18)C and ( 129-23)K
= 78L, 25C and 106K
Each of L, C and K needs 2 units each of B
Total B units needed = 2 x( 78+25+106) = 418
B on hand = 28
Total additional B units needed =418-28 =390
b.
For shippin gin week11, we need to have L, C and K in week 9.
For this, manufacturing process of L,C, and K need to be started in week 7, 6 and 6 respectively.
For this, B, J,G and H are needed in week 3, 4, 3 and 3 respectively.
Hence the latest time by which the work can be started is week 3.