Answer:
a. 0.60
Explanation:
The formula to compute the price elasticity of supply using the midpoint formula is shown below:
= (change in quantity supplied ÷ average of quantity supplied) ÷ (percentage change in price ÷ average of price)
where,
Change in quantity supplied is
= Q2 - Q1
= 30 - 20
= 10
And, average of quantity supplied is
= (30 + 20) ÷ 2
= 25
Change in price is
= P2 - P1
= $20 - $10
= $10
And, average of price is
= ($20 + $10) ÷ 2
= 15
So, after solving this, the price elasticity of supply is 0.60
