A trader sold an article on a certain price with 40% profit. If he sold double of previous selling price then find its profit % Choose one:
A) 140% B) 180% C) 120% D) 100% E) 150%
let cost price = 100%   selling price = 140%   new s.p. = 280%   p% = 280-100= 
<gadget id="calculator">280-100</gadget>
<output>180</output>
180%   Answer is 180%
<result>B</result>
A trader sold an article on a certain price with 40% profit. If he sold double of previous selling price then find its profit %