Find the unit digitof the number of five digit number that can be formed by using two 2's, three 3s, one zero and one 5

Find the number of 5 - digit numbers that can be formed using the digits 0,1,1,2,3.

Find the number of 4 - digited numbers that can be formed using the digits 2, 4, 5, 7 and 8.

Number of 6 digit numbers that can be formed using digit 2 two times and the digit 5 four times is

Number of 6 digit numbers that can be formed using digit 2 two times and the digit 5 four times is

Find the number of five digit numbers that can be formed using the digits 1,2,3,4,5,6,7.8,9 in which one digit appears once and two digits appear twice (e.g.41174 is one such number but 75355 is not.

Find the number of different words that can be formed using 4 A' s, 3 B's, 2 C' s and one D.