A dealer purchases 15 articles for Rs. 25 and sells 12 articles for Rs. 38. Find the profit percentage?  Choose the correct choice from the following.
A) 80%
B) 90%
C) 59%
D) 40%
E) 53%
L.C.M of 15 and 12   = 60   CP of 60 articles   = Rs. 100 (25 * 4)   SP of 60 articles   = Rs. 190 (30 * 5)   Profit percentage   = (190 - 100)/100 * 100= 
<gadget id="calculator">(190 - 100)/100 * 100</gadget>
<output>90</output>
90%   Answer: 90%
<result>B</result>
A dealer purchases 15 articles for Rs. 25 and sells 12 articles for Rs. 38. Find the profit percentage?