In a shop, the marked price of an article is worked out in such a way that it generates a profit of 33133313. What should be the discount percent allowed on the marked price during a sale, so that the final profit made is 20%?  Select the correct option:	A) 13 1/3	B) 12 1/2	C) 10%	D) 8 1/2	E) 6 2/3
soln:-   lets consider the cost price of an article as $60 (take a number whose 33.33% can be calculated easily)   so marked price = 1.3333*60 = 80   profit to be earned = 20%   final selling price = 1.2*60= 
<gadget id="calculator">1.2*60</gadget>
<output>72</output>
72   therefore discount to be given= 8/80 = 10%   answer - 10%
<result>C</result>
In a shop, the marked price of an article is worked out in such a way that it generates a profit of 33133313. What should be the discount percent allowed on the marked price during a sale, so that the final profit made is 20%?