Total number of 6 digits numbers in which only and all the four digits 1, 2, 3, 4 appear, is:

Total number of 6-digit numbers in which only and all the five digit 1,2,5,7 and 9 appear, is :

Total number of 6 -digit numbers in which only and all the five digits 1,3,5,7 and 9 appear,is

Total number of 10 – digit numbers in which only and all the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 appear, is:

Total number of 10 – digit numbers in which only and all the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 appear, is:

Total number of 10 – digit numbers in which only and all the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 appear, is:

Total number of 6-digit numbers in which all the odd digits appear, is

Total number of 6-digit numbers in which all the odd digits appear, is

Total number of 6-digit numbers in which all the odd digit appear is