The letters V, W, X, Y and Z are selected at random to form a five letters word without repetition. How many ways can a word be formed such that X, Y and Z follow one another?
a.36
b.48
c.24
d.12
1
Expert's answer
2020-12-01T04:25:28-0500
If X, Y and Z follow one another, then the number of ways is:
"P = 3!*3! = 36."
3! is for permutations of X, Y and Z, and 3! is for permutations of (X, Y, Z) and other two letters.
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