Locker combination with 3,5,7 and 9 how many combinations
cher has forgotten her locker combination she knows it has 3,5,7, and 9 in it does not know the order tries every possible combination how many combinations
If you do the same problem with the combinations 1,2,3,4, how many possibilities are there? One can appear in four places, two can also, so can three and four. You have four numbers that can appear in four orders. How would I have arrived at 16?