SOLUTION: How many positive, four-digit numbers have 3 as their first digit and 4 or 5 as their third digit?

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Question 511873: How many positive, four-digit numbers have 3 as their first digit and 4 or 5 as their third digit?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many positive, four-digit numbers have 3 as their first digit and 4 or 5 as their third digit?----
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1st digit: 3 ways
2nd digit: 10 ways
3rd digit: 2 ways
4th digit: 10 ways (if by 4th you mean the units digit; if you mean the 1000 digit the # of ways is 9)
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Answer: 3*10*2*10 = 600
OR
3*10*2*9 = 540
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Cheers,
Stan H.