The product structure for Item X specifies the required number of units for each constituent part within parentheses. (Note that 4 units of part C are required for X and one unit of part C by B.) The lead times for manufacturing any number of the following components given the the following table: Part Lead Time (in weeks) B 2 C 2 D 2 H 2 K 3 M 2 N 3 X 2 Z 3 There is no inventory on hand and the order for Item X is to be shipped at the beginning of week 11. In what week will manufacture of part K start?

The term manufacture refers the production of goods through the use of labor, machinery, tools and biological or chemical processing or formulation.

Here we have given that The product structure for Item X specifies the required number of units for each constituent part within parentheses.

And we need to find the number of week will manufacture of part K start

Here from the given question, here we can see that to produces the following 1 unit of P requires 4 units of A and 2 units of B is written as,

=> P(1) = A(4) + B(2)

And for 1 unit of B require 1 unit of C & 3 units of D is written as,

=> B(1) = C(1) + D(3)

And then 1 unit of D requires 2 units of A is written as,

=> D(1) = A(2)

Here from all the above equations, now we can say that, here at Level 2: 3 units of D need 6 units of A at level 1, we know that 2 unit of B needs 12 units of A

Therefore, 1 unit of P needs: (4 + 12) unit of A P(1) = A(16) 10 unit of P will requires,

=> 10 × 16 = 160

Here we know that unit of A Inventory given of component A = 70 units.

Then the Total unit of A required = 160 - 70 unit = 90 unit

Time take is calculated as,

=> 90/10 = 9

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