A woman bought books at 30% discount on its original price. He sold it at a 90% increase on the price he bought it. What percent of profit did he make on the original price?  Pick one
A) 33%
B) 22%
C) 44%
D) 55%
E) 66%
Original price = 100   CP = 70   S = 70*(190/100)= 
<gadget id="calculator">70*(190/100)</gadget>
<output>133</output>
133   100 - 133= 33%   33%nswer: 33%
<result>A</result>
A woman bought books at 30% discount on its original price. He sold it at a 90% increase on the price he bought it. What percent of profit did he make on the original price?