Four digit numbers formed with `1, 2, 4, 6, 8` without repetition are formed in ascending order.Then the rank of `4618` is :

How many numbers can be formed with digits 2,4,6,8 without repetition ?

If all possible numbers are formed by using the digits 1, 2, 3, 5, 7 without repetition and they are arranged in descending order, then the rank of the number 327 is

How many numbers can be formed with digits 3,4,6,and 8 without repetition ?

How many numbers can be formed with digits 3,4,6,and 8 without repetition ?

A five digit number is formed by the digits 1,2,3,4,5 without repetition.