SOLUTION: Need to create a pin code that consists of 8 numbers. How many different pin codes can you create if:
a)There are no restrictions?
b)None of the numbers can repeat?
c)None of
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Question 1169253: Need to create a pin code that consists of 8 numbers. How many different pin codes can you create if:
a)There are no restrictions?
b)None of the numbers can repeat?
c)None of the digits can be odd?
d)The first digit cannot be a 2 and the last digit cannot be 5,9 or 0?
e)The first digit cannot be 6 and none of the digits can repeat?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
10^8
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10*9*8*7*6*5*4*3
-
5^8
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9*10^6*7
-
9*9*8*7*6*5*4*3--nine ways for the first and then the 6 may be used
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