A tradesman by means of his false balance defrauds to the extent of 10%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?
Select
A) 20%  B) 25%  C) 27%  D) 20%  E) 21%
g% = 10 + 10+ (10*10)/100= 
<gadget id="calculator">10 + 10+ (10*10)/100</gadget>
<output>21</output>
21%   ANSW21%R:21%
<result>E</result>
A tradesman by means of his false balance defrauds to the extent of 10%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?