if two positive numbers are in the ratio 1 / 7 : 1 / 4 , then by what percent is the second number more than the first ?
"given ratio = 1 / 7 : 1 / 4 = 4 : 7 let first number be 4 x and the second number be 7 x . the second number is more than first number by 3 x . required percentage = 3 x / 4 x * 100 = 75 % . answer : c"
multiply(divide(1, 4), const_100)