7
7*3*4 = 84 combinations.
3 x 3 x 3 x 3 = 81 combinations
6 of them.
6
6 different combinations can be made with 3 items
There are 9C3 = 84 combinations.
7
7*3*4 = 84 combinations.
3 x 3 x 3 x 3 = 81 combinations
4*3*2*1 = 24 different combinations.
6 of them.
6
6
It is called the faculty of 3 and written 3! 3! = 3 * 2 * 1 The same for 4! = 4*3*2*1 and so on...
None. If you sellect three numbers each time, you can only get combinations of 3, 6, 9, ect but never 4. Also, there seems to be some confusion between people and numbers!
You Can Create 999 Number combinations