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

How many 5 digited numbers can be made with odd digits so that no two consecuitive digits are same.

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

How many numbers of four digits can be formed with the digits 1,2,3,4,5 if the digits can be repeated in the same number?

How many numbers of four digits can be formed with the digits 1,2,3,4,5 if the digits can be repeated in the same number?

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

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

How many numbers of 5 digits can be made with the digits 0,1,2,3,4,5 which are divisible by 3, digits being unrepeated in the same number ? How many of these will be divisible by 6 ?

How many even numbers of three digits each can be made with the digits 1, 2, 3, 4, 5, 6 if : no digit is repeated.