10Permutation4 = 5040
I still believe this is a permutation, and not a combination because in a combination order doesn't matter, but in a permutation order does matter
ex:
2345 is the same as 5432 in a combination, that is not true here so it is not a combination
http://en.wikipedia.org/wiki/Permutation
2007-08-02 03:00:31
·
answer #1
·
answered by walsh_patr 3
·
0⤊
0⤋
It depends on the question, whether it said 4 different numbers out of 0-9 or not.
If a number can be used repeatedly, I agree with the first answer, should be 10 P 4, which is 5040. As he said, permutation considers the order while combination dont; permutation considers 1234 and 1243 different, while combination considers it the same.
But if u can use a number repeatedly as digits (eg 1001) then the answer is 10^4 = 10,000.
2007-08-02 10:38:49
·
answer #2
·
answered by zz 2
·
0⤊
0⤋
There are 10*9*8*7 / 4*3*2 = 210 combinations, but I don't intend listing them all. Work out a clever formula to do it in Excel.
2007-08-02 10:02:19
·
answer #3
·
answered by Anonymous
·
0⤊
0⤋
there are 10000 combinations.
10 ^ 4 = 10000
2007-08-02 10:07:27
·
answer #4
·
answered by antonG 1
·
0⤊
0⤋
There are 10*10*10*10 possible combinations
or 10000.
First few:
0000
0001
0002
etc.
2007-08-02 10:12:50
·
answer #5
·
answered by steiner1745 7
·
0⤊
0⤋
10C4=210
2007-08-02 10:02:10
·
answer #6
·
answered by Anonymous
·
0⤊
0⤋