How many different numbers with distinct digits can be formed from the digits 2,3,5,7,9? How many of them are odd?

How many of the natural numbers can be formed from the digits 2, 3, 5, 7, 9 ? How many of them are odd ?

How many 2-digit even numbers can be formed from the digits 1, 2,3, 4 and 5, if the digits can be repeated ?

How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?

How many three-digit numbers are there, with distinct digits, with each digit odd ?

How many different 6-digit numbers can be formed with the digits 0, 1, 3, 5, 7 and 9 ? (No digit being repeated.)

How many different 4-digit numbers can he formed from the digits 2, 3, 4 and 6 if each digit is used only once in a number ? Further, how many of these numbers : end in a 3 ?

How many different 4-digit numbers can he formed from the digits 2, 3, 4 and 6 if each digit is used only once in a number ? Further, how many of these numbers : end in a 3 or 6 ?

How many different 4-digit numbers can he formed from the digits 2, 3, 4 and 6 if each digit is used only once in a number ? Further, how many of these numbers : end in a 4 ?

How many 3 digit even numbers can be formed from the digits 1, 2 , 3, 4, 5 and 6 assuming that repetition of the digits is allowed .

How many 4-digit numbers are there with no digit repeated?