How many odd numbers less than 1000 can be formed using the digits 0, 1, 4, and 7 if repetition of digits is allowed?

How many odd numbers less than 1000 can be formed using the digits 0,4,5,7 if (i) repetition of digits is allowed? (ii) repetition of digits is not allowed?

How many odd numbers less than 1000 can be formed by using the digits 0, 2, 5, 7 when the repetition of digits is allowed?

How many 3-digit numbers above 600 can be formed by using the digits 2, 3, 4, 5, 6, if repetition of digits is 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?

The number of natural numbers less than 7,000 which can be formed by using the digits 0, 1, 3, 7, 9 (repetition of digits allowed) is equal to

How many six-digit odd numbers,greater than 6,00,000, can be formed from the digits 5,67,8,9, and 0 if repetition of digits is allowed repetition of digits is not allowed.

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

How many numbers less than 1000 can be formed using the digits 0,1,3,4, and 5, so that each digit occurs almost once in each 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).