What is alligation and mixtures

The rule of alligation states "When different quantities of different ingredients are mixed together to produce a mixture of a mean value, the ratio of their quantities is inversely proportional to the differences in their cost from the mean value." Alligation is a rapid arithmetic method used to solve problems that involve mixing two products of different strengths to form a product having a desired intermediate strength. ... Alligation medial is used in calculating the strength of the mixture of two or more components of different strengths. Mixture: Mixing of two or more than two type of quantities gives us a mixure. Quantities of these elements can be expressed as percentage or ratio. Alligation: Alligation is a rule which is used to solve the problems related to mixture and its ingredient.a