A retailer buys 140 pens at the market price of 36 pens from a wholesaler, if he sells these pens giving a discount of 1%, what is the profit % ? Choose the correct choice from the following options.
A) 105 B) 155 C) 125 D) 185 E) 285
let the market price of each pen be $1   then, Cost Price of 140 pens = $ 36 Selling Price of 140 pens =99% of $140=$ 138.60   profit %=((102.60*100)/36)= 
<gadget id="calculator">((102.60*100)/36)</gadget>
<output>285</output>
285%   Answer 285
<result>E</result>
A retailer buys 140 pens at the market price of 36 pens from a wholesaler, if he sells these pens giving a discount of 1%, what is the profit % ?