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HIJ Inc., manufactures a lawnmower part in lots of 250 units. The raw materials

ID: 429490 • Letter: H

Question

HIJ Inc., manufactures a lawnmower part in lots of 250 units. The raw materials cost for the part is $150, and the value added in manufacturing 1 unit from its components is $300, for a total cost per completed unit of $450. The lead-time to make the part is 3 weeks, and the annual demand is 4,000 units. Assume 50 working weeks per year.

a. How many units of the part are held, on average, as mower inventory? What is its value?

b. How many units of the part are held, on average, as pipeline inventory? What is its value?

Explanation / Answer

How many units of the part are held, on average, as cycle inventory? What is its value?

Solution:

Lot size = Q = 250 units

Raw material Cost = $150

Value added cost = $300

Total cost/unit = $450

Annual demand = 4000 units

Cycle inventory = Q/2 = 250/2 = 125 units

Cost of cycle inventory = Cycle inventory * total cost = 125 units * $450 = $56,250