a dishonest dealer professes to sell goods at the cost price but uses a weight of 950 grams per kg , what is his percent ?
950 - - - 50 100 - - - ? = > 5.26 % answer : d
subtract(multiply(divide(const_100, 950), multiply(const_100, multiply(add(const_3, const_2), const_2))), const_100)