Question

the difference of two numbers is 9 and they are in the ratio 4 : 7. find the numbers

Answer 1

let the numbers are x and y
according to question
4x - 7y = 9
4x = 9 - 7y
x = 9 - 7y / 4

Answer 2

heya...

here is your answer...

Given,

Ratio of numbers = 4:7

Difference of numbers = 9

Let us take one number = 4x

another number = 7x

7x-4x=9

3x=9

x=9/3

x = 3

Therefore the 1st number = 4x = 4(3)= 12

2nd number = 7x = 7(3)=21

Proof: 21-12=9