Contoh Soal Ekonomi Manajerial

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Contoh Soal Ekonomi Manajerial

  1. 1. Andi FathurrahmanWM 68 1. Jika fungsi permintaan invers dari suatu produk tertentu adalah P= 1000 + 3Q – 4Q2 a. Tentukan elastisitas harga permintaan pada kuantitas Q=10 unit? b. Tentukan persamaan untuk TR dan MR? c. Tentukan kuantitas dan harga yang memaksimalkan TR?Jawab: a. Fungsi P= 1000 + 3Q – 4Q² Q = 10 P = 1000 + 3(10) – 4(10)² P = 630 Ep = ∆Q/∆P . P/Q Ep = 1/ (∆P/∆Q) . P/Q Ep = 1/ (3-(8.(10)) . 630/10 Ep = 0,81818 b. TR = P . Q TR = (1000 + 3Q – 4Q²) . Q TR = 1000Q + 3Q² - 4Q³ MR = ∆TR/∆Q MR = 1000 + 6Q – 12Q² c. MR = 0 0 = 1000 + 6Q – 12Q² 0 = 12 Q² - 6q – 1000 X1 = 9,39 (YANG DIPAKAI) X2 = - 8,89 P = 1000 + 3Q – 4Q² P = 1000 + 3(9,39) – 4(9,39) ² P = 675,5

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