SOLUTION: 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 permitt
Algebra.Com
Question 396795: 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?
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
a) no. of possible words when no restrictions = 6*6*6*6 = 1296
b) no. of possible words when no repetition = 6P4 = 360
c) no. of possible words when adjacent letters are not same = 6*5*5*5 = 750
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