Find the number of numbers of six digits without repetition formed with the digits 1,2,3,4,5,6 in which 5 always occurs in the tens place.

Find the number of numbers of 4 digits without repetition formed with the digits 1,2,3,4,5 in which 4 occurs in the thousands place and 5 occurs in the units place.

How many even numbers of 5 digits without repetition can be formed with the digits 1,2,3,4 and 5.

Find te number of numbers of 5 digits that can be formed with the digits 0,1,2,3 and 4 if repetition of digits is allowed.

Find the number of numbers of 4 digits greater than 3000 that can be formed with the digits 0,1,2,3,4 and 5 if repetition of digits is allowed.

No. of even 6 digits numbers, without repetition of digits, using digits 1,2,3,4,5,6,7 are:

How many numbers of five digits can be formed without repetition if 2,3 and 5 always occur in each number

Find the number of 3-digit numbers, formed with the digit (2,5,4,6) when repetition of the digits is allowed.

A five digit number is formed by the digits 1,2,3,4,5 without repetition.

If repetition is allowed, how many even numbers of two digits can be formed with the digits 1,2,3,4,5?