A dealer purchases 15 articles for Rs. 25 and sells 12 articles for Rs. 30. Find the profit percentage?  Choose the most appropriate option:  A) 20%  B) 40%  C) 50%  D) 80%  E) 30%
C   50%   L.C.M of 15 and 12 = 60   CP of 60 articles = Rs. 100 (25 * 4)   SP of 60 articles = Rs. 150 (30 * 5)   Profit percentage = (150 - 100)/100 * 100= 
<gadget id="calculator">(150 - 100)/100 * 100</gadget>
<output>50</output>
50%
<result>C</result>
A dealer purchases 15 articles for Rs. 25 and sells 12 articles for Rs. 30. Find the profit percentage?