Answer:
Option (a) is correct.
Option (d) is correct.
Explanation:
Average quantity supplied:
= (70,000 + 30,000) ÷ 2
= 50,000
Therefore,
Percentage change in quantity supplied:
= Change in quantity supplied ÷ Average quantity supplied
= (70,000 - 30,000) ÷ 50,000
= 40,000 ÷ 50,000
= 0.8
Average price:
= (8 + 4) ÷ 2
= 6
Therefore,
Percentage change in price:
= Change in price ÷ Average price
= (8 - 4) ÷ 6
= 4 ÷ 6
= 0.667
Hence,
Elasticity of supply in the market for gadgets:
= Percentage change in quantity supplied ÷ Percentage change in price
= 0.8 ÷ 0.667
= 1.2
(b) An increase in the price of tickets to a popular sporting event will increase total revenue if the buyers of the tickets are fanatic about the event.
Hence, they are buying more number of tickets because they like the sporting event.