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Verified answer
P1 = 12000P2 = 15000
Q1 = 100
Q2 = 80
Ed = ΔQ/ΔP × P1/Q1
Ed = (Q2 - Q1)/(P2 - P1) × P1/Q1
Ed = (80 - 100)/(15000 - 12000) × 12000/100
Ed = (-20)/(3000) × 12000/100
Ed = -0,8 (< 1)
Jawaban: B