A mixture contains milk and water in the ratio 5 : 2. If 4 liters of water is added to the mixture, the ratio becomes 5 : 4. What is the quantity of milk in the given mixture?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 10 liters.
The ratio of milk and water is = 5 : 2
Let the quantity of milk in the mixture be 5x litres
The quantity of water be 2x litres
When 4 litres of water is added to the mixture, the ratio becomes = 5 : 4.
hence¸
⇒
⇒ 20x = 10x + 20
⇒ 20x - 10x = 20
⇒ 10x = 20
⇒ x = 20/10 = 2
So¸
The quantity of milk in the mixture is = 5x = 5 × 2 = 10 liters