SOLUTION: i need help on Counting. If a license plate has three letters followed by three numbers, how many license plates can you have if there are no repetitions in the number part and a
Algebra ->
Permutations
-> SOLUTION: i need help on Counting. If a license plate has three letters followed by three numbers, how many license plates can you have if there are no repetitions in the number part and a
Log On
Question 573112: i need help on Counting. If a license plate has three letters followed by three numbers, how many license plates can you have if there are no repetitions in the number part and a one or zero cannot be used in the fist digit of the number part. it is ok if the letters repeat. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! If a license plate has three letters followed by three numbers, how many license plates can you have if there are no repetitions in the number part and a one or zero cannot be used in the fist digit of the number part. it is ok if the letters repeat.
------------
3 letters --> 26*26*26
1st number --> 2 to 9 = 8 (no zero or 1)
2nd number --> 0 to 9 except the 1st number --> 9
3rd number --> 0 to 9 except the 1st and 2nd #'s --> 8
------
--> 26*26*26*8*9*8