Mixture and Alligation

Mixture and Alligation is a quant topic used to solve problems involving combining items of different prices, strengths, or concentrations, especially where weighted averages or replacement logic is involved.

The rule of alligation is a shortcut that compares how far each component is from the mean value, helping you quickly find the ratio in which two quantities should be mixed.

It is commonly used in questions on milk and water, metal mixing, partnership-like weighted values, concentration changes, profit through adulteration, and repeated replacement problems.

Start with weighted average intuition, then learn the alligation diagram, and finally practise replacement and adulteration questions. Strong percentage and ratio basics make this topic much easier.