Exam (elaborations)
MAC2601 ASSIGNMENT 2 SEMESTER 2 OF 2022
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- University Of South Africa (Unisa)
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MAC2601 ASSIGNMENT 2 – SEMESTER 2 OF2022
QUESTION 1
PART A
(a) Calculation of manufacturing overheads per unit
Calculations
C1 Machining costs OAR = 𝑇𝑜𝑡𝑎𝑙 𝑀𝑎𝑐ℎi𝑛i𝑛𝑔 𝐶𝑜𝑠𝑡𝑠
𝑇𝑜𝑡𝑎𝑙 𝑀𝑎𝑐ℎi𝑛𝑒 𝐻𝑜𝑢𝑟𝑠
Calculation of total machine hours
Hours
150
Rocky (826 * ) 2 065
60
225
BMY (2 040 * )
60 7 650
9 715
Machining costs OAR = 2 623 050
9 715
= 𝑅270 𝑝𝑒𝑟 𝑚𝑎𝑐ℎi𝑛𝑒 ℎ𝑜𝑢𝑟
C2. Assembly costs OAR = 𝑇𝑜𝑡𝑎𝑙 𝐴𝑠𝑠𝑒𝑚𝑏𝑙𝑦 𝐶𝑜𝑠𝑡𝑠
𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑝𝑟𝑜𝑑𝑢𝑐𝑡i𝑜𝑛 𝑟𝑢𝑛𝑠
Calculation of number of production runs
Production
Runs
826
Rocky ( ) 118
7
2 040
BMY ( )
30 68
186
Assembly costs OAR = 2 250 000
186
= 𝑅12 096. 77 𝑝𝑒𝑟 𝑝𝑟𝑜𝑑𝑢𝑐𝑡i𝑜𝑛 𝑟𝑢𝑛
FOR ACCADEMIC NEEDS CONTACT INFO@UNITUTORIALS.CO.ZA/0651609781
, 𝑇𝑜𝑡𝑎𝑙 O𝑢𝑎𝑙i𝑡𝑦 𝐼𝑛𝑠𝑝𝑒𝑐𝑡i𝑜𝑛𝑠 𝐶𝑜𝑠𝑡
C3. Quality inspections OAR =
𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 q𝑢𝑎𝑙i𝑡𝑦 i𝑛𝑠𝑝𝑒𝑐𝑡i𝑜𝑛𝑠
Calculation of total number of quality inspections
Number of
quality
inspections
Rocky (15 * 118) 1 770
BMY (60 * 68) 4 080
5 850
Quality inspections OAR = 5 265 000
5 850
= 𝑅900 𝑝𝑒𝑟 q𝑢𝑎𝑙i𝑡𝑦 i𝑛𝑠𝑝𝑒𝑐𝑡i𝑜𝑛
C4. Stores receiving costs OAR = 𝑇𝑜𝑡𝑎𝑙 𝑆𝑡𝑜𝑟𝑒𝑠 𝑅𝑒𝑐𝑒i𝑣i𝑛𝑔 𝐶𝑜𝑠𝑡𝑠
𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑝𝑎𝑟𝑡𝑠 𝑑𝑒𝑙i𝑣𝑒𝑟𝑒𝑑 𝑑𝑢𝑟i𝑛𝑔 𝑡ℎ𝑒 𝑦𝑒𝑎𝑟
2 610 000
= (369
+ 675)
= 𝑅2 500 𝑝𝑒𝑟 𝑝𝑎𝑟𝑡 𝑑𝑒𝑙i𝑣𝑒𝑟𝑒𝑑
C5. Stores issue costs OAR = 𝑇𝑜𝑡𝑎𝑙 𝑆𝑡𝑜𝑟𝑒𝑠 𝐼𝑠𝑠𝑢𝑒𝑠 𝐶𝑜𝑠𝑡𝑠
𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 i𝑠𝑠𝑢𝑒𝑠 𝑓𝑟𝑜𝑚 𝑠𝑡𝑜𝑟𝑒𝑠
3 065 023
= (650
+ 980)
= 𝑅1 880. 38
FOR ACCADEMIC NEEDS CONTACT INFO@UNITUTORIALS.CO.ZA/0651609781
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