What is his percentage profit made by Felix if he purchased 21 dozen t-shirts at Rs. 12 per dozen. He sold 7 dozens at 15% profit and the remaining 14 dozens with 18% profit?  Choose the correct choice from the following options
A) 18%	B) 17%	C) 15%	D) 13%	E) 14%
Explanation :   C.P of 21 dozen = Rs.(12 x 21) = Rs.252   C.P of 7 dozen = Rs. (12 x7) = Rs. 84.   C.P of 14 dozen =Rs. (12 x14) = Rs. 168   profit on 7 dozen at 15% = 15/100*84= 
<gadget id="calculator">15/100*84</gadget>
<output>63/5 = around 12.6</output>
12.6   profit on 14 remaining dozen at 18%= 18/100*168= 
<gadget id="calculator">18/100*168</gadget>
<output>756/25 = around 30.24</output>
30.24   total profit= 12.6 + 30.24= 
<gadget id="calculator">12.6 + 30.24</gadget>
<output>42.84</output>
42.84   % profit= ?/100*252 = 42.84   = 17%   Answer : 17%
<result>B</result>
What is his percentage profit made by Felix if he purchased 21 dozen t-shirts at Rs. 12 per dozen. He sold 7 dozens at 15% profit and the remaining 14 dozens with 18% profit?