The whole or a part of the set of objects are arranged in a manner considering the order of management is termed as Permutations. They are generally described as distinct objects taken in a specific time. Here is the Permutation Formula which guides you to calculate the permutations count in a simple manner. This nPr formula requires n and r values for performing calculations. Permutation formula nPr is one of the most used formulae by high-grade school students.

Where,

n = Number of sample points in set n

r = Number of sample points in each permutation

The above Permutation Formula in this page requires factorial calculation in order to determine the permutation for the known input values. This nPr formula will be a useful on for the students who are going to appear for board exams.