Question

please solve yhis sum of rayio and proportion

Answer 1

let x be the milk and y be the water
x+y=126
x/y=5/2
y=2x/5
x=2x/5=126
7x =126*5
x=90
y=36
let water in this mixture be 3y
we have milk means y=90
water=90*3=270
extra water added=270-36=234