Answer:
$22,000
Step-by-step explanation:
In this case, both you and the dealer have the same information about the car, meaning that information is symmetrically distributed. Since the value of the car is between $20,000 and $24,000, you should be willing to pay ($20,000 + $24,000) / 2 = $22,000
If the car dealer had more information than you, then you should be willing to pay the lower price $20,000.