Numbers formed with the digits, 1,2,3 are:

The sum of the digits in tens place of all numbers formed with the digits 1, 2, 3, 4, 5 taken all at a time without repetition is

The number of five digit numbers formed with the digits 0, 1, 2, 3, 4 and 5 (without repetition) and divisible by 6 are

The sum of all five digit numbers formed with the digits 1,2,3,4,5 without repetition of digits are

A five digit number is formed with the digits 1,2,3,4,5 without repetition. Find the probability that the number is divisible by 4.

A five digit number is formed with the digits 1,2,3,4,5 without repetition. Find the probability that the number is divisible by 4.

How many numbers can be formed with the digits 1, 2, 3, 4, 3, 2, 1 so that the odd digits always occupy the odd places?

How many different 4-digit number can be formed with the digits 1,2,3,4 without any repetition ? Also find their sum.

How many 6 digit numbers can be formed with the digits 1,3,3,0,1,2?

How many numbers of four digits can be formed with the digits 1,2,3,4, and 5? (if repetition of digits is not allowed).

Number of natural numbers lt2.10^(4) , which can be formed with the digits, 1,2,3 only is equal to