In how many ways can you make a five letter password using the first ten letters of the English alphabet if each letter

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In how many ways can you make a five letter password using the first ten letters of the English alphabet if each letter can be used at most once? (You can use only capital letters.)


A. 5!
B. 10*9*8*7*6
C. 10! - 5!
D. 10^5
E. 10!

Answer: B
Source: Veritas Prep
Source: — Problem Solving |