The no. of ways of choosing five numbers from 1 to 20 such that positive difference of any two of them `(|x_i - x_j|)` is at least 3, is

The number of ways in which we can choose 2 distinct integers from 1 to 200 so that the differecne between them is atmost 20 is

The number of ways in which we can choose 2 distinct integers from 1 to 100 such that difference between them is at most 10 is

The number of ways in which we can choose 2 distinct integers from 1 to 100 such that difference between them is at most 10 is

The number of ways in which we can choose two positive integers from 1 to 100 such that their product is a multiple of 3 is

The number of ways in which we can choose two positive integers from 1 to 100 such that their product is multiple of 3 is

The number of ways in which we can choose two positive integers from 1 to 100 such that their product is multiple of 3 is

30,72&x are three positive integers such that product of any two of them of divisible by third then least value of x=

The number of ways to choose 7 distinct natural numbers from the first 100 natural numbers such that any two chosen numbers differ atleast by 7 can be expressed as ""^(n)C_(7) . Find the number of divisors of n.

The number of ways to choose 7 distinct natural numbers from the first 100 natural numbers such that any two chosen numbers differ atleast by 7 can be expressed as ""^(n)C_(7) . Find the number of divisors of n.