Kitchen Magician, Inc. has assembled the following data pertaining to its two mo
ID: 2509168 • Letter: K
Question
Kitchen Magician, Inc. has assembled the following data pertaining to its two most popular products.
34,000
Past experience has shown that the fixed manufacturing overhead component included in the cost per machine hour averages $42. Kitchen Magician’s management has a policy of filling all sales orders, even if it means purchasing units from outside suppliers.
Required:
If 60,000 machine hours are available, and management desires to follow an optimal strategy, how many units of each product should the firm manufacture? How many units of each product should be purchased?
With all other things constant, if management is able to reduce the direct material for an electric mixer to $26 per unit, how many units of each product should be manufactured? Purchased?
Direct material $ 26 $ 45 Direct labor 20 33 Manufacturing overhead @ $54 per machine hour 54 108 Cost if purchased from an outside supplier 68 116 Annual demand (units) 28,00034,000
Explanation / Answer
Working Note 1
Statement showing no of manufacturing hours required per unit
Blender
Electric Mixer
Manufacturing overhead @ $54 per machine hour
54
108
Required number hours per unit = 54/54, 108/54
1
2
Fixed manufacturing overhead is $42. Therefore variable component is 54-42 = $12 per machine hour
Here fixed cost is irrelevant for decision making. We need to consider only variable component for decision making.
Part A:
Statement showing benefit per manufacturing hour compared to purchasing from outside and priority to manufacture
Blender
Electric Mixer
A. Direct material
26
45
B. Direct labor
20
33
C. Variable Manufacturing overhead @ $12 per machine hour 12*1,2
12
24
D. Total relevant cost if manufacture(A+B+C)
58
102
E. Cost if purchased from an outside supplier
68
116
F. Benefit of manufacturing inhouse (E-D)
10
14
G. Number of manufacturing hours required per unit (Working Note 1)
1
2
H. Benefit per manufacturing hour =F/G
10
7
Therefore Priority to manufacture inhouse
First
Second
Statement showing no of units to be manufactured and to be purchased
A. Annual demand (units) for Blender
28,000
B. Number of manufacturing hours required per unit of Blender
1
C. Number of manufacturing hours required for Blender=A*B
28000
D. Total manufacturing hours available
60000
E. Remaining manufacturing hours available for Electric Mixer= D-C
32000
F. Number of manufacturing hours required per unit of Electric Mixer
2
G. Number of units of Electric mixer that can be manufactured = E/F
16000
H. Total number of units of Electric mixer required to meet demand
34000
I. Number of units of Electric mixer to be purchased from outside=H-G
18000
Summary table:
Blender
Electric Mixer
Manufacture
28,000
16,000
Purchase
0
18000
Part B:
Statement showing benift per manufacturing hour compared to purchasing from ouside and priority to manufacture If direct material for Electric mixer is reduced to $26 per unit
Blender
Electric Mixer
A. Direct material
26
26
B. Direct labor
20
33
C. Variable Manufacturing overhead @ $12 per machine hour 12*1,2
12
24
D. Total relevant cost if manufacture(A+B+C)
58
83
E. Cost if purchased from an outside supplier
68
116
F. Benefit of manufacturing inhouse (E-D)
10
33
G. Number of manufacturing hours required per unit (Woring Note 1)
1
2
H. Benefit per manufacturing hour =F/G
10
16.5
Therefore Priority to manufacture inhouse
Second
First
Statement showing no of units to manufacured and to be purchased
A. Annual demand (units) for Electric Mixer
34,000
B. Number of manufacturing hours required per unit of Electric Mixer
2
C. Number of manufacturing hours required for Electric Mixer=A*B
68000
D. Total manufacturing hours available
60000
E. Defict manufacturing hours for Electric Mixer=C-D
8000
F. Number of units of Electric mixer to be purchased outside =E/B
4000
G. Number of unit of Electric mixer to be manufactured inhouse=A-F
30,000
F. So, Entire number of units of Blender to be purchased from outside
28000
Summary:
Blender
Electric Mixer
Manufacture
0
30,000
Purchase
28000
4000
Working Note 1
Statement showing no of manufacturing hours required per unit
Blender
Electric Mixer
Manufacturing overhead @ $54 per machine hour
54
108
Required number hours per unit = 54/54, 108/54
1
2
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