A five-digit number is formed using digits 1, 3, 5, 7 and 9 without repeating any one of them. What is the sum of all such possible numbers?

Q. A five-digit number is formed using the digits 1, 3, 5, 7 and 9 without repeating any one of them. What is the sum of all such possible numbers?(1993)

Q. The sum of all numbers greater than $1000$ formed by using the digits $1,3,5,7$ such that no digit is being repeated in any number is

Q. All five digit odd numbers formed using digits 0, 1, 2, 3, 4, 5 (without repeating any digit) are arranged in increasing order. Let sum of all digits of 151th number be 'a'. Value of a-7 is

Q. The sum of all the numbers which can be formed by using the digits $1,3,5,7$ all at a time and which have no digit repeated, is?

Q. Write down all the numbers that can be formed using the digits 3, 4, and 9 without repeating any digits and then arrange them in descending order.