Probability

quaidy4

New member
a 4-letter word is to made using letters from the set (a,b,c,d,e,f) How many words are possible assuming that

a)there are no restrictions
b) no repetition of letters is permitted
c) adjacent letters in the word may not be the same?

I think for a it is 6!
b) 6 times 5 times 4 times 3

c) 6 times 5 to the power of 3

pka

Elite Member
quaidy4 said:
a 4-letter word is to made using letters from the set (a,b,c,d,e,f) How many words are possible assuming that
a)there are no restrictions
b) no repetition of letters is permitted
c) adjacent letters in the word may not be the same?

I think for a it is 6!
b) 6 times 5 times 4 times 3 CORRECT

c) 6 times 5 to the power of 3 CORRECT
a) should be $$\displaystyle 6^4$$

quaidy4

New member
thank you so much!