To get the more profit, which is the best transaction?  Choose the correct choice from the following answers
A) C.P. = Rs. 18, profit = Rs. 9  B) C.P. = Rs. 25, profit = Rs. 12  C) C.P.= Rs. 20, profit = Rs. 8  D) C.P.= Rs. 30, profit = Rs. 18  E) None of these
Explanation :   Solution: (A) Profit% = (9*100/18)= 
<gadget id="calculator">(9*100/18)</gadget>
<output>50</output>
50%.   (B) profit%= (12*100/25)= 
<gadget id="calculator">(12*100/25)</gadget>
<output>48</output>
48%.   (C)profit%= (8*100/20)= 
<gadget id="calculator">(8*100/20)</gadget>
<output>40</output>
40%.   (D) profit%= (18*100/30)= 
<gadget id="calculator">(18*100/30)</gadget>
<output>60</output>
60%.   From the above results clearly, (D) is the best transaction.   Answer : C.P.= Rs. 30, profit = Rs. 18
<result>D</result>
To get the more profit, which is the best transaction?