1. Alligation:
It is the rule that enables us to
find the ratio in which two or more ingredients at the given price must be
mixed to produce a mixture of desired price.
2. Mean Price:
The cost of a unit quantity of
the mixture is called the mean price.
3. Rule of Alligation:
If two ingredients are mixed, then
4. Suppose a container contains x
of liquid from which y units are taken out and replaced by water.
After n operations, the quantity of pure liquid

After n operations, the quantity of pure liquid

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