The number of 'n' digit numbers such that no two consecutive digits are same is

The number of 5-digit numbers in which no two consecutive digits are identical, is

The number of three digit numbers having only two consecutive digits identical is

The number of three-digit numbers having only two consecutive digits identical is

Find the total number of n -digit number (n>1) having property that no two consecutive digits are same.

The number of three-digit numbers having only two consecutive digit identical N, then the value of (N/2)^(1/2) is

Let N be the number of 4 digit numbers formed with at most two distinct digits.Then the last digit of N is

How many numbers of n digits can be made with the non-zero digits in which no two consecutive digits are the same?