In how many of permutations of word UNIVERSAL, no two of the letters E, R, S occur together.
I'm confused while proceeding with this one, I know total permutation is 9!.
In how many of permutations of word UNIVERSAL, no two of the letters E, R, S occur together.
I'm confused while proceeding with this one, I know total permutation is 9!.
Copyright © 2021 JogjaFile Inc.
The task to arrange the letters can be performed by
...count the ways...