Question

In a mixture of 126 kg of milk and water, milk and water are in ratio 5 : 2. How much water must be added to the mixture to make this ratio 3 : 2?

Answer 1

Let x signify water in original mixture and y signifies milk

x + y = 126

5x = 2y

or x = `y/2.5`

`y + (y/2.5) = 126`

y = 90 kgs (milk)

x = 36 kgs (water)

Milk remains same as 90 kgs

ratio is 3 : 2

let new water content be z

3z = 2 × 90

Water quantity new = 60 kgs

Extra water added = 24 kgs