A car dealership has 40 cars on the lot, 20% of which are silver. If the dealership receives a new shipment of 80 cars, 35% of which are not silver, what percentage of total number of cars are silver? Choose one:	A) 30 %	B) 35 %	C) 40 %	D) 45 %	E) 50 %

Rationale: "the number of silver cars is 0.2 * 40 + 0.35 * 80 = 36 the percentage of cars which are silver is 36 / 120 = 30 % the answer is a ."
Answer: A