A car dealership has 40 cars on the lot, 15% of which are silver. If the dealership receives a new shipment of 80 cars, 45% of which are not silver, what percentage of total number of cars are silver?	Choose the most appropriate option:	A) 30 %	B) 35 %	C) 40 %	D) 45 %	E) 50 %

Rationale: "the number of silver cars is 0.15 * 40 + 0.45 * 80 = 42 the percentage of cars which are silver is 42 / 120 = 35 % the answer is b ."
Answer: B