the average monthly salary of 24 employees in an organisation is rs . 1500 . if the manager ' s salary is added , then the average salary increases by rs . 400 . what is the manager ' s monthly salary ?
explanation : manager ' s monthly salary = rs . ( 1900 x 25 - 1500 x 24 ) = rs . 11,500 answer : b
subtract(multiply(add(1500, 400), add(24, const_1)), multiply(1500, 24))