sixty 5 percent of a number is 21 less than 4 fifth of that number . what is the number
let the number be x . then , 4 * x / 5 – ( 65 % of x ) = 21 4 x / 5 – 65 x / 100 = 21 5 x = 2100 x = 140 . answer a 140
divide(multiply(21, const_100), multiply(const_3, 5))