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Make or Buy Question

Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › Make or Buy Question

  • This topic has 3 replies, 2 voices, and was last updated 3 years ago by John Moffat.
Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • June 7, 2021 at 3:51 pm #623678
    weirdxnii
    Participant
    • Topics: 3
    • Replies: 3
    • ☆

    In-house production capacity is 8000 units. All four materials are made on the same machines and require the same machine time per unit. Machine time is the limiting production factor.

    Material W X Y Z
    Units required 4000 2000 3000 4000
    Variable cost of in-house $8/unit $12/unit $9/unit $10/unit
    manufacture
    Directly attributable $5000 $8000 $6000 $7000
    fixed cost expenditure
    Cost of external purchase $9/unit $18/unit $12/unit $12/unit

    Directly attributable fixed costs are fixed cash expenditures that can be saved if production of the material in-house is stopped entirely.

    If a decision is made solely on the basis of short-term cost considerations, what materials should the company purchase externally?

    Answer: 4000 units of W and 4000 units of Z.
    I don’t understand why 4000 units of Z? Why is it not 1000 units of Z?
    Please help clarify…

    June 7, 2021 at 4:28 pm #623699
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 54671
    • ☆☆☆☆☆

    If they purchased 1,000 units of Z externally it would cost an extra 1,000 x $2 = $2,000 but they would not save any of the directly attributable fixed costs because they would still be making some internally.

    If, alternatively, they purchased all 4,000 externally then it would cost an extra $8,000 but they would then save all of the directly attributable fixed costs of $7,000. So the net extra cost is $1,000 (which is better than an extra cost of $2,000 🙂 )

    June 8, 2021 at 3:20 am #623801
    weirdxnii
    Participant
    • Topics: 3
    • Replies: 3
    • ☆

    Alright, thank you for the clarification 🙂

    June 8, 2021 at 8:47 am #623837
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 54671
    • ☆☆☆☆☆

    You are welcome 🙂

  • Author
    Posts
Viewing 4 posts - 1 through 4 (of 4 total)
  • The topic ‘Make or Buy Question’ is closed to new replies.

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