How many kg of pure salt must be added to 30 kg of 2% of salt and water to increase it to a 10% solution?

How many kg of pure salt must be added to 30kg of 2% of salt and water to increase it to a 10% solution?

If n n/3 kg of pure salt must be added to 30 kg of 2% solution of salt and water to increase it to a 10% solution, then find n.

A solution of 30 litres of milk and water, has 70% milk. How many litres of water must be added so that the volumes of milk and water will be in the ratio 3 : 2 ?

How many liters of a 25% saline solution must be added to 3 liters of a 10% saline solution to obtain a 15% saline solution?

On a certain hill station, pure water is found to boil at 95^@C . How many grams of NaCl must be added to 2 kg of water so that the water boils at 100^@C .

How many ounces of a solution that is 30 percent salt must be added to a 50-ounce solution that is 10 percent salt so that the resulting solution is 20 percent salt?

how much water should be added to 15 grams of salt to obtain 15 per cent salt solution ?