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Question
At the market price of Rs 10, a firm supplies 4 units of output. The market price increases to Rs 30. The price elasticity of the firm’s supply is 1.25. What quantity will the firm supply at the new price?
Options:
A .  8
B .  12
C .  14
D .  18
Answer: Option C
:
C
Given that
p0=Rs10,p1=Rs30,q0=4,ϵs=0.5,Δp=p1p0=Rs20
ϵs=ΔqΔp×p0q0ϵs=Δq20×104=1.25Δq=1.25×4×2010Δq=10q1=q0+Δq=14

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