How many natural numbers less than 1000 can be formed form the digits 0,1,2,3,4,5 when a digit may be repeated any number of times?

How many natural numbers less than 1000 can be formed form the digits 0,1,2,3,4,5 when a digit may be repeated any number of xx?

How many natural numbers less than 1000 can be formed from the digits 0, 1, 2, 3, 4, 5 when a digit may be repeated any number of times?

How many four-digit numbers can be formed with the digits 1, 2, 3, 4, 5, 6 when a digit may be repeated any number of times in any arrangement ?

How many 4-digit numbers can be formed with the digits 0, 2, 3, 4, 5 when a digit may be repeated any number of times in any arrangement?

How many numbers of 3 -digits can be formed with the digits 1,2,3,4,5 when digits may be repeated?

How many numbers of 3 digits can be formed with the digits 1,2,3,4,5 when digits may be repeated?

How many numbers of 3 digits can be formed with the digits 1,2,3,4,5 when digits may be repeated?

How many three digits numbers can be formed by using the digits 0,1,3,5,7 while each digit may be repeated any number of times?

The number of numbers less than 1000 than can be formed out of the digits 0,1,2,3,4 and 5, no digit being repeated, as

The number of numbers less than 1000 than can be formed out of the digits 0,1,2,3,4 and 5, no digit being repeated, as