A furniture manufacturer is planning to produce two new products: a wooden chair
ID: 463782 • Letter: A
Question
A furniture manufacturer is planning to produce two new products: a wooden chair and a wooden table. The standard labor hours for these are 1.0 and 2.0 hours, respectively. These products are made in two work centers, wood cutting and assembly, where the expected average percentage of work is 40 percent for wood cutting and 60 percent for assembly. Given the following schedule for next 10 periods, calculate the labor hours needed in each of the two work centers:
Period
1
2
3
4
5
6
7
8
9
10
Chair
146
131
124
140
127
160
126
133
131
136
Table
142
158
155
97
75
100
81
94
92
154
(Based on chapter 7 and 8 from the book manufacturing planning and control for supply chain management 6th edition)
Period
1
2
3
4
5
6
7
8
9
10
Chair
146
131
124
140
127
160
126
133
131
136
Table
142
158
155
97
75
100
81
94
92
154
Explanation / Answer
The standard labor hours for chair 1 hour The standard labor hours for table 2 hours average percentage of work at wood cutting center 40% average percentage of work at assembly center 60% Period 1 2 3 4 5 6 7 8 9 10 Total Chair 146 131 124 140 127 160 126 133 131 136 1354 Table 142 158 155 97 75 100 81 94 92 154 1148 Labor hours required for chair 146 131 124 140 127 160 126 133 131 136 1354 Labor required for wood cutting for chair 58.4 52.4 49.6 56 50.8 64 50.4 53.2 52.4 54.4 541.6 Labor required for assembly work for chair 87.6 78.6 74.4 84 76.2 96 75.6 79.8 78.6 81.6 812.4 Labor hours required for table 284 316 310 194 150 200 162 188 184 308 2296 Labor required for wood cutting for table 113.6 126.4 124 77.6 60 80 64.8 75.2 73.6 123.2 918.4 Labor required for assembly work for table 170.4 189.6 186 116.4 90 120 97.2 112.8 110.4 184.8 1377.6 Total labor hours needed at wood cutting center 172 178.8 173.6 133.6 110.8 144 115.2 128.4 126 177.6 1460 Total labor hours needed at assembly work center 258 268.2 260.4 200.4 166.2 216 172.8 192.6 189 266.4 2190
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