The different letters of an alphabet are given. Words with five letters are formed from these given letters. Then the number of words which have at least one letter repeated is _ _ _ _ _ _ __ .
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
No explanations have been posted yet. Check back later!