BS] Suppose there are 150 buyers in the market for used cars. There are two types of cars in the market: the high-quality cars have a 90% chance to work, and the low-quality cars have a 40% chance to work. All buyers value a car that works at $10,000 and a car that does not work at $0. The buyers are risk-neutral. Sellers know the quality of their cars. There are 7'0 sellers with low-quality cars, and 30 sellers with high-quality cars. The sellers' value of a high-quality car is $8000, and their value of a low-quality car is $5000