The total number of 9 digit numbers of different digits is:

The total number of five digit numbers of different digits in which the digit in the middle is the largest is

The total number of 8 digit numbers is

The total number of five-digit numbers of different digits in which the digit in the middle is the largest is a. sum_(n=4)^9^n P_4 b. 33(3!) c. 30(3!) d. none of these

The total number of five-digit numbers of different digits in which the digit in the middle is the largest is a. sum_(n_4)^9 (n) P_4 b. 33(3!) c. 30(3!) d. none of these

The total number of five-digit numbers of different digits in which the digit in the middle is the largest is a. sum_(n=4)^9^n P_4 b. 33(3!) c. 30(3!) d. none of these

The total number of 4-digit numbers is

Find the total number of 9 digit numbers having all different digits.

Find the total number of two-digit numbers (having different digits), which is divisible by 5.

Find the total number of two-digit numbers (having different digits), which is divisible by 5.