Question : 150 litres mixture of milk and water contains 30 percent milk. How much more milk must be added to make the water percentage in the mixture as 40 percent?

Option 1: 120.5 litres

Option 2: 157.5 litres

Option 3: 132.5 litres

Option 4: 112.5 litres

Question : A 40-litre mixture of milk and water contains milk and water in the ratio of 7 : 3. How many litres of water should be added to the mixture so that the resulting mixture has 60% water in it?

Option 1: 30

Option 2: 35

Option 3: 20

Option 4: 25