there are 100 employees in a room . 99 % are president . how many managers must leave the room to bring down the percentage of president to 98 % ?
"we have 99 presidents and 1 director . that 1 director to compose 2 % of the total number of people , there must be 50 people in the room , hence 50 presidents must leave . answer : b ."
divide(subtract(multiply(100, divide(99, const_100)), multiply(100, divide(98, const_100))), subtract(const_1, divide(98, const_100)))