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Q: How many different four digit combinations are there of the numbers zero through nine and using one number twice in the combination?
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Related questions

What are the different combinations using the numbers 0 through 9 but using the numbers only once in each combination?

There is only one combination. In a combination the order of the numbers does not matter so the only combination is 0123456789. This is the same as 1326458097


What are the Possible combinations of numbers 0 through 9 if any numbers can be repeated in the combination?

How many numbers per combination?


What are all the number combinations for the numbers 1 through to fourteen?

Including the null combination, there are 2^14 = 16384 combinations.


What are the combinations of 1 through 10 with out using them twice?

There is 1 combination of all ten numbers, 10 combinations of one number and of nine numbers, 45 combinations of two or eight numbers, 120 combinations of three or seven numbers, 210 combinations of four or six numbers and 252 combinations of five numbers. That is 1023 = 210 - 1 in total.


What are every possible 10 digit combinations of the numbers 0 through 9?

There is only one combination since the order of the numbers in a combination does not matter.


How many combinations can you make using numbers 1 through to 10 each with three different numbers?

1000


How many 7 digit combinations can you have if you can only use the numbers 0 through 9 once each?

10!/3! = 604800 different combinations.


If using numbers 0 through 9 how many different 4 digit combinations can be made?

66


If using numbers 1 through 4 how many different 4 digit combinations can be made?

10,000


If using numbers 1 through 8 how many different 4 digit combinations can be made?

15


How many different 5 number combinations can you get using numbers 1 through 39 with no doubles?

575757


How many combinations of 5 are there in 0 to 10 numbers?

There are a huge number of combinations of 5 numbers when using the numbers 0 through 10. There are 10 to the 5th power combinations of these numbers.