a tradesman by means of his false balance defrauds to the extent of 20 % ? in buying goods as well as by selling the goods . what percent does he gain on his outlay ? a . 20 % b . 45 %
g % = 20 + 20 + ( 20 * 20 ) / 100 = 44 % answer : c
add(add(20, 20), divide(multiply(20, 20), const_100))