Question

Two numbers are in the ratio 3:4. If 5 is
added to each number, their ratio becomes
7:9. Find those numbers.
by taking two variables
​

Answer 1

Step-by-step explanation:

let the two numbers be x and y

so, x/y=3/4

x=3y/4

also,x+5/y+5=7/9

x+5=7(y+5)/9

(3y/4)+5=7y+35/9

9(3y+20)=4(7y+35)

27y+180=28y+140

180-140=28y-27y

40=y

therefore, x=(3into40)/4

x=30

therefore the two numbers are 30 and 40