A person purchased a TV set for Rs. 15000 and a DVD player for Rs. 6000. He sold both the items together for Rs. 31500. What percentage of profit did he make?  Choose the correct answer:  A) 48%  B) 50%  C) 40%  D) 45%  E) 20%
The total CP = Rs. 15000 + Rs. 6000   = Rs. 21000 and SP   = Rs. 31500   Profit(%)   = (31500 - 21000)/21000 * 100= 
<gadget id="calculator">(31500 - 21000)/21000 * 100</gadget>
<output>50</output>
50%   Answer: 50%
<result>B</result>
A person purchased a TV set for Rs. 15000 and a DVD player for Rs. 6000. He sold both the items together for Rs. 31500. What percentage of profit did he make?