if c is 25 % of a and 10 % of b , what percent of a is b ?
"c is 25 % of a - - > c = a / 4 ; c is 10 % of b - - > c = b / 10 ; thus a / 4 = b / 10 - - > b = 5 / 2 * a = 2.5 a . therefore , b is 250 % of a . answer : e"
multiply(divide(divide(25, const_100), divide(10, const_100)), const_100)