the salary of a person was reduced by 15 % . by what percent should his reduced salary be raised so as to bring it at par with his original salary ?
"let the original salary be $ 100 new salary = $ 85 increase on 85 = 15 increase on 100 = 15 / 85 * 100 = 17.6 % answer is b"
multiply(divide(multiply(const_100, divide(15, const_100)), subtract(const_100, multiply(const_100, divide(15, const_100)))), const_100)