Lesson 2.4: Average & Alligation
Description:
Average is used for speed and marks-based problems, while alligation is useful for mixtures.
Key Topics:
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Weighted Average: Marks and salary problems.
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Alligation Rule: Mixing two different values to get a mean value.
Example:
Average of 10, 20, 30 = (10+20+30)/3 = 60/3 = 20.
