How many six-digit passwords can you create if you use only numbers 1,2,3,4,5,6,7,8,9 without repetition?

asked Apr 24, 2021 37.9k views

5 votes

3.6k points

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4 votes

Answer:

60480

Explanation:

total number (n) = 9

r = 6

9P6 = 9!/(9-6)!

= 9×8×7×6×5×4×3!/ 3!

= 3! cancels out

= 9×8×7×6×5×4

= 60480

Jaor answered Apr 29, 2021

by Jaor

3.4k points

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