a shopkeeper forced to sell at cost price , uses a 950 grams weight for a kilogram . what is his gain percent ?
"shopkeeper sells 950 g instead of 1000 g . so , his gain = 1000 - 950 = 50 g . thus , % gain = ( 50 * 100 ) / 950 = 5.26 % . answer : option d"
multiply(divide(add(multiply(const_2, const_100), divide(const_100, const_2)), 950), const_100)