Tips & Tricks Let the quantity of water initially be 3x. ⇒ Milk = 8x ⇒
3x+3
8x
=
1
2
⇒ 6x + 6 = 8x ⇒ x = 3 ⇒ The quantities of milk in the mixture initially = 8x = 24 litres ⇒ The quantities of water in the mixture initially = 3x = 9 litres ∴ The quantities of milk and water respectively in the mixture initially are 24 litres and 9 litres.