
Latihan 1 : Soal Bedah Kisi Kisi OSN
Authored by WILDAN AQIL ASH SHOFI
Social Studies
9th - 12th Grade
Used 2+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
When the price elasticity of demand for a product is -0.8 and income elasticity is +1.5, a 10% price increase combined with a 6% income decrease will:
Answer explanation
Gunakan rumus: %ΔQ = (Ed × %ΔP) + (Ey × %ΔY) = (-0.8×10%) + (1.5×-6%) = -8% -9% = -17%. Jawaban B paling mendekati, meskipun hasil aktual -17%.
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Dalam pasar monopoli murni, kurva permintaan perusahaan berhimpit dengan:
Answer explanation
Karena hanya ada satu penjual, kurva permintaan perusahaan sama dengan kurva permintaan pasar.
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
In Nash equilibrium of a duopoly Cournot model, firms produce output where:
Answer explanation
Dalam Cournot, masing-masing perusahaan berproduksi pada titik MR = MC, tetapi karena jumlah total output terbatas, P tetap > MC.
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Eksternalitas negatif produksi (misal: polusi pabrik) menyebabkan:
Answer explanation
Karena biaya eksternal tak tercermin dalam harga, maka harga pasar lebih rendah dari biaya sosial yang sebenarnya.
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
If a consumer’s utility function is U(X,Y) = min{2X, Y}, and prices are Px = $3, Py = $1, with income $90, optimal consumption is:
Answer explanation
Gunakan syarat 2X = Y dan persamaan anggaran: 3X + Y = 90 → 3X + 2X = 90 → X=18, Y=36.
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Jika fungsi produksi Q = 10K⁰·⁵L⁰·⁵ dan biaya input r = $4, w = $9, biaya minimal memproduksi 100 unit adalah:
Answer explanation
Gunakan teknik minimisasi biaya Cobb-Douglas. Hasil rasio optimal menghasilkan biaya mendekati $360.
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
The Gini coefficient for a perfectly equal income distribution is:
Answer explanation
Gini = 0 artinya distribusi pendapatan sempurna merata.
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