Answer: C. 2.20
Explanation:
Given the folliwing
At price(P1) = $10 per unit,
Quantity produced(Q1) = 400 units
When price(P2) = $12,
Quantity produced(Q2) = 600 units
The price elasticity of supply is used to determine how quantity supplied is affected by changes in the price of a commodity.
The midpoint method of determining price elasticity of supply :
(Percentage change in quantity supplied ÷ percentage change in price)
[(Q2-Q1) ÷((Q2+Q1)/2) ÷ (P2-P1)÷((P2+P1)/2)]
Percentage Change in quantity supplied = [(600-400)/(600+400)/2)] =200/500 = 0.4
Percentage change in price = [(12-10)/(12+10)/2]
= 2/11 = 0.1818
Therefore, price elasticity of supply = (0.4 ÷ 0.1818) = 2.20