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

Question : Three containers whose volumes are in the ratio of 2 : 3 : 4 are full of a mixture of spirit and water. In the 1st container, the ratio of spirit and water is 4 : 1, in the second container the ratio is 11 : 4 and in the 3rd container the ratio is 7 : 3. All three mixtures are

Question : If the sum of two quantities is equal to three times their difference, then the ratio of the two quantities is:

Question : Two mixtures A and B have the following compositions:
Mixture A has copper and tin in a ratio of 1 : 2
Mixture B has copper and tin in a ratio of 1 : 3
If equal quantities of mixtures A and B are used for producing mixture C, then find the ratio of copper and

Question : Three vessels whose capacities are 3 : 2 : 1 are filled with milk mixed with water. The ratio of milk and water in the mixture of vessels is 5 : 2, 4 : 1, and 4 : 1, respectively. Taking $\frac{1}{3}$ of first, $\frac{1}{2}$ of second, and $\frac{1}{7}$ of third mixtures,