Formula: nCr = n! divided by (n-r)! x r!
where n is the number of things to choose from and you choose r of them
15C4 = 15!divided by (15-4)! x 4! = 1365 ways
4
140 possible combinations
There are 125970 combinations and I am not stupid enough to try and list them!
9
462 combinations.
No. There are nearly 14 million combinations of 49 things taken 6 at a time. Excel does not have that many rows or columns to support that.
fifteen million two hundred ninety-seven using digits
There are 5,040 combinations.
126 combinations. Remember that the order does not matter.
3,124,550 possible combinations
There are 252 combinations.
120 combinations using each digit once per combination. There are 625 combinations if you can repeat the digits.