SOLUTION: How many 4-number license plates can be made using the digits 0, 1, 2, 3, 4, and 5, if an even digit must come first and repetitions are allowed? Not allowed?
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Question 272080: How many 4-number license plates can be made using the digits 0, 1, 2, 3, 4, and 5, if an even digit must come first and repetitions are allowed? Not allowed? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! FIRST DIGIT 3 (0,2,4):
ALL OTHER DIGITS 6
THUS WE HAVE 3*6*6*6=648 WITH REPEATS.
WITH NO REPEATS WE HAVE :
FIRST DIGIT 3:
THE REST 5,4,3
THUS WE HAVE 3*5*4*3=180 WITHOUT REPEATS.
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