This article takes you through some of the applications of the concepts that may be tested in Permutations and Combinations. Let’s look at some application based problems in Permutations and ...

The number of different groups of r objects that can be formed from a total of n objects when the order of selection is irrelevant is called the number of combinations of n objects taken r at a time.

A new proof from the Australian science fiction writer Greg Egan and a 2011 proof anonymously posted online are now being hailed as significant advances on a puzzle mathematicians have been studying ...