Definition of Permutation
Category : JEE Main & Advanced
The ways of arranging or selecting a smaller or an equal number of persons or objects at a time from a given group of persons or objects with due regard being paid to the order of arrangement or selection are called the (different) permutations.
For example : Three different things \[a,\,\,b\] and \[c\] are given, then different arrangements which can be made by taking two things from three given things are \[ab,ac,\text{ }bc,\text{ }ba,\text{ }ca,\text{ }cb\].
Therefore the number of permutations will be 6.
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