SOLUTION: How many different 4 digit vehicle number plates can be made if the first digit must not be 6 and no digits may be repeated?

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Question 285067: How many different 4 digit vehicle
number plates can be made if the
first digit must not be 6 and no
digits may be repeated?
Answer by stanbon(57962) About Me  (Show Source):
You can put this solution on YOUR website!
How many different 4 digit vehicle
number plates can be made if the
first digit must not be 6 and no
digits may be repeated?
-----------------------------
1st digit: 9 ways
2nd digit: 9 ways
3rd digit: 8 ways
4th digit: 7 ways
------------------------
Total # of plates 9*9! = 4536
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Cheers,
Stan H.