The ratio(by volume) of milk and water in a mixture is 2 : 1. If we add 12 litres of water in the mixture, then the ratio of milk and water becomes 4 : 3. What is the quantity of water in the new mixture?
Answer & explanation
Correct answer: option 4
Initial Mixture,
Milk : water
2 : 1
Final Solution after 12 liters of water is added,
Milk : water
4 : 3
⇒ Making ratio of Milk in both solutions same, we multiply initial solution with 2,
⇒ (2 : 1) x 2 = 4 : 2,
⇒ Final solution water ratio - Initial solution water ratio = 12 L
⇒ (3 - 2) unit = 12 L
⇒ 1 unit = 12 L,
⇒ The quantity of water in the new mixture = 3 x 12 = 36 liters.