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There can be 103 = 1000 codes.

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Q: How many different 4-digit codes are possible if the last digit has to be zero?
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Related questions

How many possible 4 digit combinations are there using 0-9. how many different combination codes are possible?

There are 210 4 digit combinations and 5040 different 4 digit codes.


How many different 4-digit codes are possible if the digits cannot be repeated?

If you include 0000, ten thousand unique four digit codes are possible.


How many different 5 digit zip codes are possible if digits are allowed to repeated?

As far as I can tell, all 5 digit numbers are potential zip codes, so there are 99999 + 1 potential zip codes, or 100,000. Many of these are not actually is use.


How many different 5-digit zip codes are possible if no digits are repeated?

10*9*8*7*6=30,240


How many three-digit area codes are possible if the first digit cannot be a 0?

There are 900 possible three-digit numbers not beginning with 0. (Note, however, that this question does not accurately describe the restrictions on numbers that can be used as area codes.)


How many 5 digit zip codes are possible?

yes of course I know people with 3 and 2 digit addresses


How many different codes of 4 digits are possible if the first digit must be 3 4 or 5 and if the code may not end in 0?

3x10x10x10x9=2700


How many possible 4 digit 0 thru 9 codes?

If the first digit can be zero, there are 5,040. If the first digit can't be zero, there are only 4,536.


How many codes are possible with 2 letters and one digit if no letter or digit appear more than once?

There are 26 choices for the first letter, 25 choices for the second letter (since we can't repeat the first letter), and 10 choices for the digit. Therefore, the total number of possible codes is: 26 x 25 x 10 = 6,500 So there are 6,500 possible codes with 2 letters and one digit if no letter or digit appears more than once.


What are the possible biggest 4 digit numbers with 4 different digit?

5


How many 3 digit codes are possible with out repeating a number using 0-9 only?

10 x 9 x 8 = 720 different "permutations"


How many 6 digit license plate codes are possible without repeating any digits?

10!/(10-6)! =10!/4! = 10*9*8*7*6*5 = 151200 different codes