The number of 3 digit numbers lying between 100 and 999 inclusive and having only two consecutive digits 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

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

The number of 5-digit numbers in which no two consecutive digits are identical, 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 digit identical N , then the value of (N//2)^(1//2) is _______.

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

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