if 0.75 of a number is equal to 0.025 of another number , the ratio of the numbers is :
"0.75 a = 0.025 b - > a / b = 0.025 / 0.75 = 25 / 750 = 1 / 30 : . a : b = 1 : 30 answer : c"
divide(multiply(0.025, const_100), multiply(0.75, const_100))