How many numbers can be formed fro the digits 1,2,3 and 9, if repetition of digits is not allowed?

How many numbers can be formed from digits 1, 3, 5, 9 if repetition of digits is not allowed?

How many non-zero numbers can be formed using the digits 0,1,2,3,4 and 5 if repetition of digits is not allowed?

How many three-digit even numbers can be formed using the digits 1, 2, 3, 4 and 5 when repetition of digits is not allowed ?

The number of 3-digit even numbers that can be formed from the digits 0,1,2,3,4 and 5, repetition of digits being not allowed, is

How many 5-digit prime numbers can be formed using the digits 1, 2, 3, 4, 5 if the repetition of digits is not allowed?

How many 4 -digit numbers can be formed by using the digits 1 to 9 if repetition of digits is not allowed?

How any three digit odd numbers can be formed by using the digits 1,2,3,4,5,6 if,The repetition of digits is not allowed? The repetition of digits is 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).