A tradesman by means of his false balance defrauds to the extent of 30%? in buying goods as well as by selling the goods. What percent does he gain on his outlay? Choose the correct choice from the following answers: A) 37 B) 69 C) 65 D) 78 E) 56
Explanation:   g% = 30 + 30 + (30*30)/100= 
<gadget id="calculator">30 + 30 + (30*30)/100</gadget>
<output>69</output>
69%   Answer: 69
<result>B</result>
A tradesman by means of his false balance defrauds to the extent of 30%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?