A car dealership has 40 cars on the lot, 20% of which are silver. If the dealership receives a new shipment of 80 cars, 50% of which are not silver, what percentage of total number of cars are silver?	Select the correct option.
A) 30%
B) 35%
C) 40%
D) 45%
E) 50%
The number of silver cars is 0.2*40 + 0.5*80= 
<gadget id="calculator">0.2*40 + 0.5*80</gadget>
<output>48</output>
48   The percentage of cars which are silver is 48/120= 40%   The answer is 40%.
<result>C</result>
A car dealership has 40 cars on the lot, 20% of which are silver. If the dealership receives a new shipment of 80 cars, 50% of which are not silver, what percentage of total number of cars are silver?