SOLUTION: in how many ways can you arrange 5 of the numerals 1 through 7?

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Question 1137024: in how many ways can you arrange 5 of the numerals 1 through 7?
Answer by ikleyn(52817) About Me  (Show Source):
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In 7*6*5*4*3 = 2520 ways.


Any of 7 numerals in the 1-st position.

Any of 6 remaining in the 2-nd position.

 . . . . . and so on . . .