If two numbers are respectively 30% and 50% of a third number, what is the ratio between the first two numbers?
Let the 3rd number be ‘x’
So, 1st number = 30% of x = 0.3x and 2nd number = 50% of x = 0.5x
∴ Ratio between the first two numbers = 0.3x : 0.5x = 3 : 5