INTRODUCING 5 - days-a-week problem solving session for Math Olympiad and ISI Entrance. Learn More 

February 8, 2020

Permutation of Rearranging letters

A permutation is a (possible) rearrangement of objects. For example, there are 6 permutation of rearranging letters a, b, c: abc, acb, bac, bca, cab, cba. a b c , a c b , b a c , b c a , c a b , c b a .

Try the problem

Calculate the number of "CLOSENESS" word that can be obtained by rearranging the letters.

Mathematical Circle


5 out of 10

Knowledge Graph

permutation of rearranging letters knowledge graph

Use some hints

There will be factorial ($n!$) no of ways if there are \(n\) number of letters .

The answer is 9!/(2!.3!)=(

Subscribe to Cheenta at Youtube

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Cheenta. Passion for Mathematics

Advanced Mathematical Science. Taught by olympians, researchers and true masters of the subject.