How many different numbers of 4 digits can be formed from the digits 0, 1, 2, ...9 if repetition is allowed, not allowed.

How many different numbers of six digits can be formed from the digits 0,4, 5,7, 8, 9 with , repetition of digits is not allowed.

How many different numbers of six digits can be formed from the digits 3,1,7,0,9,5 when repetition of digits is not allowed?

How many number of 4 digits can be formed with the digits 1,2,3,4,5 if repetition of digit is allowed and not allowed?

How many different numbers of 5 significant digits can be formed with the digits 0,2,5,6,7 if repetition is (a) allowed, (b) not allowed?

How many number of 5 digits can be formed with the digits 0,2,4,6,8 if repetition of digits is not allowed?

How many number of 5 digits can be formed with the digits 0,2,4,6,8 if repetition of digits is not allowed?

How many numbers can be formed from the digits 1, 2, 3, 4 when repetition is not allowed?

How many numbers can be formed from the digits 1, 2, 3, 4 when repetition is not allowed?

How many numbers can be formed from the digits 1, 2, 3, 4 when repetition is not allowed?

How many numbers can be formed from the digits 1, 2, 3, 4 when repetition is not allowed?