Question

A mixture of 50 liters of milk and water contains 10% water. How much water should be added to this mixture,so that the new mixture contains 25% water?

Answer 1

7.5 litre

Step-by-step explanation:

quantity of mixture= 50 litre.

10%of water.

so, 10%of 50 litre.

10/100×50= 5 litre.

Now, 25%of water in mixture= 25/100×50

= 12.5 litre

now, quantity of water needed so that new mixture contain 25%of water = 12.5-5

= 7.5 litre

thus, quantity of water needed so that new mixture contain 25%of water = 7.5 litre