Question 612854: HOW MANY FOUR DIGIT ODD NUMBERS CAN BE CREATED USING THE DIGIST A THROUGH 7?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! HOW MANY FOUR DIGIT ODD NUMBERS CAN BE CREATED USING THE DIGITS 1 THROUGH 7?
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With repetition:
The last digit must be 1,3,5,or 7: 4 ways
The 1st 3 digits: each 7 ways
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Total number: 7^3*4 = 1372
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Cheers,
Stan H.
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