A trader bought a car at 20% discount on its original price. He sold it at a 40% increase on the price he bought it. What percent of profit did he make on the original price?	Choose one:
A) 12% B) 15 % C) 86 % D) 42 % E) 16%
Explanation:   Original price = 100   CP = 80   S = 80*(140/100)= 
<gadget id="calculator">80*(140/100)</gadget>
<output>112</output>
112   100 - 112= 12%   12%nswer:12%
<result>A</result>
A trader bought a car at 20% discount on its original price. He sold it at a 40% increase on the price he bought it. What percent of profit did he make on the original price?