10
Starting from 1111 couning upwards to 9999 there would be 8888 different combinations.
4!=4x3x2x1=24
7
45
shut up guys
10
how many combinations of 4 numbers are there in 7 numbers
1 + 3 + 5 + 71 there are many combinations
You can get only four combinations: They are: 11, 118, 119 and 1189. In a combination, the order of the digits does not matter.
How many place combinations in a four digit number and all have to go in different spot example: 1234, 4321, 2134 etc. numbers can't change and have to stay four numbers?The answer would be 36 different combinations. This is simply the counting principle and it's easy for anyone to learn.
There are: 9C6 = 84 combinations
4 x 4 x 4 = 64 :)
they are 21C2 combinations