In how many ways can the natural numbers lying between 10 and 1000 be formed with the digits 0,3,5,7,9?

In how many ways can natural numbers lying between 10 and 100 be formed with the digits 0,3,4,5,8?

How many numbers lying between 3000 and 6000 can be constructed by the digits 1,2,3,4,5,6 assuming that no digit is repeated in any number?

How many natural numbres lie between 9^2 and 10^2 Between 11^2 and 12^2 ?

how many multiples of 7 lie between 100 and 1000

In how many ways can one post 3 letters in 5 post boxes?

How many numbers greater than 1000 but not greater than 4000 can be formed using the digits 0, 1,2, 3, 4, repetitions of digits being allowed?

How many even numbers greater than 300 can be formed with the digits, 1, 2, 3, 4, 5 which cannot be repeated?

In how many ways can the letters of the words ALGEBRA be arranged in the form of words so that the two A's donot come together?

How many numbers between 100 and 1000 such that all digits of the numbers are only 3 or 9?

In how many ways can the letters of the words DIRECTOR be arranged in the form of words so that the two R's do not come together?