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How many 3 digit combinations there 0-9?
The order of the digits in a combination does not matter. So 123 is the same as 132 or 312 etc. There are 10 combinations using just one of the digits (3 times). There are 90 combinations using 2 digits (1 once and 1 twice). There are 120 combinations using three different digit. 220 in all.
How many 9 number combinations using 0-9?
There are only 10 combinations. In each combination one of the 10 digits is left out.
How many three digit combinations can be formed using 123456?
Assuming no repeated digits, lowest first, 20; in any order 120; Allowing repeated digits: 216
If you have twenty four digits how many combinations of twelve can you make?
If you have 24 distinct characters, then there are 2,704,156 combinations of 12 characters. Normally there are only ten digits and so 24 of them would contain duplicates. In that case the answer will depend on the duplication.
How many 4 digit combinations can be made with 4 digits?
To calculate the number of 4-digit combinations that can be made with 4 digits, we can use the formula for permutations. Since there are 10 possible digits (0-9) for each of the 4 positions, the total number of combinations is 10^4, which equals 10,000. This is because each digit can be selected independently for each position, resulting in a total of 10 choices for each of the 4 positions.
