How many four-letter words can be made from the letters "TOMORROW"?
I wrote them all down and this is what i got:
Combinations = 22
Permutations = 286
I assume nonsense works are ok? I expect you just want 4 letter strings.
TMW OOO RR
I think it is just 8P4/( 3!2!) = 1680/12 = 140