A tradesman by means of his false balance defrauds to the extent of 28%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?	Choose the correct answer:
A) 37
B) 27
C) 68.84
D) 78.45
E) 62.89
Explanation:   g% = 28 + 28 + (28*28)/100= 
<gadget id="calculator">28 + 28 + (28*28)/100</gadget>
<output>1_596/25 = around 63.84</output>
63.84%   Answer: 68.84
<result>C</result>
A tradesman by means of his false balance defrauds to the extent of 28%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?