175 litres of a solution contains `88%` of acid and the rest water. How many liters of water must be added such that the resulting mixture contains `23%` of water ?

A solution of 165 litres contains 80% of acid and the rest water. How much water must be added to the above solution such that the resulting mixture contains 25% water ?

A solution of 150 litres contains 60% of milk and the rest is water. How much water must be added to the above about solution such that the resulting mixture contains 50% of water (in litres) ?

2250 litres of an acid solution contain 35% acid. Find the range of water in litres to be added with this acid solution so that the resulting mixture will have more than 15% but less than 25% acid.

In 729 litres solution of acid and water, the ratio of acid and water 7:2. How many litres of water must be added to it to get the solution in which the ratio of acid and water is 5:3 ?