Question

Two numbers are such that the ratio between them is 3 ratio 5 if each is increased by 10 then ratio between the new number so formed is 5 ratio 7 find the original number

Answer 1

Let the original numbers be 3x and 5x respectively
According to the given condition:
(3x + 10)/(5x + 10) = 5/7
=>21x + 70 = 25x + 50
=> 4x = 20 or x=5
Therfore, Original numbers are 15 and 25

Answer 2

let no. x/y
ATQ
(x+10)/(y+10) = 5/7
7x+70 =5y +50
7x -5y =-20. __________(1)

}}}}}}}}. x/y = 3/5 (Given)
x =3y/5
put in equations first

21y/5 -5y = -20
-4y= -20 ×. 5
y =. 25
x = 15 hope this helps you
plz mark brainlist answer if satisfied