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

Find the sum of all four digit numbers (without repetition of digits) formed using the digits 1,2, 3, 4, 5.

The number of 4 digit numbers without repetition that can be formed using the digit 1,2,3,4,5,6,7 in which each number has two odd digits and two digits is

The number of 4 digit numbers without repetition that can be formed using the digits 1, 2, 3, 4, 5, 6,7 in which each number has two odd digits and two even digits is

How many different number of 4 digits each (without repetition of digits) can be formed with the digits 0,1,2,3,4,5,6 so that the digits in each number are in the ascending order?

How many different number of 4 digits each (without repetition of digits) can be formed with the digits 0,1,2,3,4,5,6 so that the digits in each number are in the descending order

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

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