How many numbers of four digits can be formed with the digits 1,2,4,5,7 no digit being repeated?

How many different numbers of three digits can be formed with the digits 1,2,3,4,5 no digit is being repeated ?

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?

How many numbers of four digits can be formed by using the digits 1, 3, 5, 7, 9, a digit being repeated any number of times in any number ?

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).

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).