The total number of 4-digit number whose greatest common divisor with 18 is 3, is `"______"`

The total number of 8 digit numbers is

The total number of 3-digit numbers, whose sum of digits is 10, is

The total number of 3-digit numbers, whose sum of digits is 10, is __________.

The total number of 5 digit numbers = ..............

The total number of 4 digit numbers in which the digit are in descending order, is

Find the number of eight-digit numbers the sum of whose digits is 4.

The total number of two digit numbers whose unit digit is either, same, double, triple or quadruple of the tens digit :