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Radovilsky Manufacturing Company, in Hayward, California, makes flashing lights

ID: 382617 • Letter: R

Question

Radovilsky Manufacturing Company, in Hayward, California, makes flashing lights for toys. The company operates its production facility 300 days per year. It has orders for about 11,600 flashing lights per year and has the capability of producing 100 per day. Setting up the light production costs $52. The cost of each light is $1.00. The holding cost is so. 10 per light per year. a) What is the optimal size of the production run? Iunits (round your response to the nearest whole number). b) What is the average holding cost per year? $ (round your response to two decimal places). c) What is the average setup cost per year? $ (round your response to two decimal placos). d) What is the total cost per year, including the cost of the lights? (round your response to two decimal places).

Explanation / Answer

Annual demand = D = 11800 flashlights

Daily demand = d = 11800 / 300 = 39.33

Production capability = p = 100 / day

Cs = Cost of setting up = $52

Ch = annual inventory holding cost = $0.1

Thus optimal size of production run ( EPQ )

= Square root ( 2 x Cs x D / Ch x ( 1 – d/p))

= Square root ( 2 x 52 x 11800 / 0.1 x ( 1 – 39.33/100) )

= 4497.49 ( 4497 rounded to nearest whole number )

OPTIMAL SIZE OF PRODUCTION RUN = 4497

Optimal holding cost per year

= Ch x Average inventory

= Ch x EPQ/2 X ( 1 – d/p)

= 0.1 x 4497/2 X ( 1 – 39.33/100)

= $ 136.41

AVERAGE HOLDING COST PER YEAR = $136.41

Average set up cost

= Cs x Number of set ups

= Cs x Annual demand / EPQ

= $ 52 x 11800 / 4497

= $ 136.44

AVERAGE SET UP COST = $136.44

Cost of lights = Unit price x Annual demand = $1 x 11800 = $11800

Total cost per year including cost of lights = $ 11800 + $136.41 + $136.44 = $12072.85

TOTAL COST PER YEAR INCLUDING COST OF LIGHTS = $12072.85

OPTIMAL SIZE OF PRODUCTION RUN = 4497