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There are 1,320 ways one can a president, a vice-president and a secretary to be chosen from 15 members of a club assuming that one person cannot hold more than one position with the help of permutation.
In math, a permutation of a set is, broadly speaking, the rearranging of its elements if the set is already sorted, or the arrangement of its members into a sequence or linear order. The act of altering the linear order of an ordered set is referred to as a "permutation" in this context. Nearly all areas of mathematics and numerous other scientific disciplines employ permutations. They are used in biology to describe RNA sequences, in quantum physics to describe particle states, and in computer science to analyse sorting algorithms. The product of all positive numbers less than or equal to n, often known as n factorial, denotes the number of permutations of n different objects. It is typically written as n.
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