How many different 4-digit number can be formed with the digits 1,2,3,4 without any repetition ? Also find their sum.

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

How many different numbers of 4 digits can be formed with the digits 1,1,2,2,3,4 ?

How many different 3 -digit numbers can be formed by using the digits 0,2,5 without repeating any digit in the number?

How many different 3-digit numbers can be formed by using the digits 0, 2, 5 without repeating any digit in the number?

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 ?

How many three digit number can be formed using the digits 1,2,3,4,5 if repetition is not allowed?