the difference between 2 numbers is 40? they are in the ratio

Question

9:7. What are the numbers ?

Answer 1

let the two numbers be 9x and 7x

9x - 7x = 40
x = 20

one number is 9(20) or 180 , the other is 140

check:
is 180:140 = 9:7
is 180 - 140 = 40 , YES