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

The number of integers between 1 and 10000 with exactly one '4' and exactly one '5' as its digits does not lie in the interval :

The number of integers between 1 and 10000 with exactly one '4' and exactly one '5' as its digits does not lie in the interval :

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

Let x be the number of integers lying between 2999 and 8001 which have at least two digits equal. Then x is equal to

How many numbers are there between 100 and 1000 such that at least one of their digits is 7?

Nmber of natural numbers between 100 and 1000 such that at least one of the digits is 7, is

How many numbers are there between 100 and 1000 such that at least one of their digits is 7 ?

(i) How many numbers are there between 100 and 1000 such that at least one of their digits is 7 ? (ii) How many of them have exactly one of their digits as 7 ?

Number of natural numbers between 100 & 1000 such that at least one of their digits is 6, is