Permutations
 

Permutations problem 35


We have 6 keys. How many ways can we distribute the keys if:

  • we hang each key on its own hook and the hooks are in a row attached to the wall?

  • we arrange all the keys on the circle?

  • we hang the keys on a round pocket pendant (can be turned over)?


 

material editor: Theophilus Borgbara