Answer:
8
3
Step-by-step explanation:
Consumer surplus is the difference between the willingness to pay of a consumer and the price of the good.
Consumer surplus = willingness to pay – price of the good
A consumer would demand for a product as long as he can earn a positive consumer surplus
When price is 10, there is a consumer surplus for buyers A to H. buyer I, would earn a negative consumer surplus if he purchases the product. Thus, the quantity demand at that price would be 8
When price is $25, there is a consumer surplus for buyers A to C. From buyer D, buyers would have a negative consumer surplus so they would not purchase the product