Question

How many 5-letter arrangements of the letters T, E, X, A, S can be created if eachletter is used only once?What is the answer?

Answer 1

120

Step-by-step explanation

We have to find the number of permutations of 5 letters in 5 spots:

`_5P_5=(5!)/((5-5)!)=5!=5\cdot4\cdot3\cdot2\cdot1=120`