Number of three digit number with atleast one 3 and at least one 2 is

Number of three digit numbers such that atleast one of the digits is 9 , if repetitions allowed is

Number of three digit numbers such that atleast one of the digits is 9 , if repetitions allowed is

The number of three digit numbers in which 9 appears only in one place is

Number of four digit numbers in which at least one digit occurs more than once, is :

Number of four digit numbers in which at least one digit occurs more than once, is :

The number of 5 digit numbers having atleast one of their digit repeated is

If a number is a selected at random from first 100 natural numbers then the probabilitiy that the number is a two digited number with atleast one even digit either at the beginning or ending is

Find the number of integer between 1 and 10000 with at least one 8 and at least one 9 as digits.