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KELOMPOK 1 :

KELOMPOK 1 :. NAMA KELOMPOK : 1.ADI PRANATA 2.M.FAISAL ROSYIDIN 3. JAKA PRATAMA M 4.SHULBY ROCHMAN 5. MICROVELIO PRIMA GUNA 6.DANI DIANSA PUTRA. SOAL.

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KELOMPOK 1 :

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  1. KELOMPOK 1 : NAMA KELOMPOK : 1.ADI PRANATA 2.M.FAISAL ROSYIDIN 3.JAKA PRATAMA M 4.SHULBY ROCHMAN 5.MICROVELIO PRIMA GUNA 6.DANI DIANSA PUTRA

  2. SOAL Customers at Joe’s office supply store demand an average of 6000 desks per year. Each time an order is placed. An ordering cost of $ 300 is incurred. The annual holding cost for a single desk is 25% of the $ 200 cost of desk. One week elapses between the placement of an order and the arrival of the order. In parts (a)-(d).assume that no shortages are allowed. a. Each time an order is placed, how many desks should be ordered? b. How many orders should be placed each year? c. Determine the total annual costs (excluding purchasing costs) of meeting the customers demands for desks. d. Determine the reorder point. If the lead time were five weeks, what would be the reorder point? (52 weeks = one year)

  3. JAWABAN Diket : D = 6000 ; K = $ 300 ; h = 25% x $ 200 = $ 50 a) q*= = = 268,3 b) Frekuensi pemesanan per tahun : = = 22,4 c) TC(q) = OC+HC = + = + = 6708,91+6707,5 = 13.416,41 ( Tanpa purchasing cost ) d) Lama Siklus = 52/22 = 2,36 LD = = = 568,4

  4. = = 2,12 = Reorder point = LD – 2(q*) = 568,3 – 2(268,3) = 568,3 – 536,6 = 31,7

  5. interpretasi a. Dari hasil perhitungan didapatkan bahwa bangku yang harus dipesan adalah sebanyak 268 buah. b. Dari hasil perhitungan didapatkan pula bahwa frekuensi pemesanan per tahun adalah sebanyak 22 kali. c. Total biaya tahunan ( tanpa perhitungan purchasing cost ) adalah sebesar $ 13.416,41 d. Reorder point sebesar 31,7 artinya tingkat sediaan sebanyak 32 buah bangku dimana pemesanan harus dilakukan.

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