WAEC Economics 2024 Question 17

The table below shows the supply and demand schedule for apples. Use it to answer the question.
Price ($) | Quantity demanded | Quantity supplied
10 | 50 | 25
20 | 35 | 35
30 | 20 | 45
40 | 5 | 55
At what price is excess supply equal to 25?

1. A.$10.
2. B.$20.
3. C.$30.
4. D.$40.