Question : A mixture contains milk and water in a ratio of 5 : 3, respectively. On adding 7 litres of water, the ratio of milk to water becomes 1 : 2. Find the quantity of milk in the mixture.

Option 1: 7 litres

Option 2: 10 litres

Option 3: 5 litres

Option 4: 3 litres

Question : In a mixture of 25 litres, the ratio of milk to water is 4 : 1. Another 3 litres of water is added to the mixture. The ratio of milk to water in the new mixture is:

Option 1: 5 : 1

Option 2: 5 : 2

Option 3: 5 : 3

Option 4: 5 : 4

Question : The ratio of milk to water in a 100-litres mixture is 2 : 3. 10 litres of this mixture is withdrawn and replaced with milk. This process is repeated 2 more times. What is the percentage of milk in the final mixture?

Option 1: 56.26%

Option 2: 54.27%

Option 3: 58.21%

Option 4: 51.24%

Question : 20 litres of a mixture contains 20% alcohol and the rest is water. If 4 litres of water is mixed in it, the percentage of alcohol in the new mixture will be:

Option 1: $33\frac{1}{3}\%$

Option 2: $16\frac{2}{3}\%$

Option 3: $25\%$

Option 4: $12\frac{1}{2}\%$

Question : Mixture A contains chocolate and milk in the ratio 4 : 3 and mixture B contains chocolate and milk in the ratio 5 : 2. A and B are taken in the ratio 5 : 6 and mixed to form a new mixture. The percentage of chocolate in the new mixture is closest to:

Option 1: 35%

Option 2: 69%

Option 3: 31%

Option 4: 65%