# Permutations and Combinations Calculator

suppose we have three letters x, y and z. For each one letters can be written in 3 different ways. The first, second or third letter can be written in 3 possible ways, as shown in figure below.

Selecting and arranging a group of elements in an interval of time is known as Combinations.

Suppose we have four numbers 5, 6, 7 and 8. It can be arranged in 1 way when order does not matter.

This Online Calculator helps us to learn more about Permutations and Combinations and solve the given problems.