How many different numbers of 2 digits can be formed with the digits 1,2,3,4,5, no digits being repeated in the same number?

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

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 5-digit even numbers can be formed using the digits 1,2,5,4,5 ?

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 numbers greater than 56000 can be formed by using the digits 4, 5, 6,7, 8, no digit being repeated in any number ?

How many 3-digit even numbers can be made using the digits 1, 2, 3, 4, 6, 7, if no digit is repeated?

How many natural numbers not exceeding 4321 can be formed with the digits 1, 2, 3 and 4, if the digits can repeat ?

How many three-digit numbers can be formed without using the digits 0, 2, 3, 4, 5 and 6?

How many 7-digit numbers can be formed, using the digits 1, 2, 0, 2, 4,2 and 4?