A shopkeeper fixes the marked price of an item 35% above its cost price. The percentage of discount allowed to gain 8% is  Choose one.
A) 18%  B) 20%  C) 22%  D) 24%  E) None of these
Explanation:   Let the cost price = Rs 100   then, Marked price = Rs 135   Required gain = 8%,   So Selling price = Rs 108   Discount = 135 - 108= 
<gadget id="calculator">135 - 108</gadget>
<output>27</output>
27   Discount%= (27/135)*100= 
<gadget id="calculator">(27/135)*100</gadget>
<output>20</output>
20%   Option 20%
<result>B</result>
A shopkeeper fixes the marked price of an item 35% above its cost price. The percentage of discount allowed to gain 8% is