let integer p and q are selected randomly from first 60 natural numbers then find the probability that `7^p +7^q` is divisible by 5.

A number is selected from first 100 natural numbers. Find the probability that the number is divisible by 7.

If three distinct numbers are chosen randomly from the first 100 natural numbers, then the probability that all three of then are divisible by 2 or 3, is

If three distinct numbers are chosen randomly from the first 100 natural numbers, then the probability that all three of then are divisible by 2 or 3, is

If a number is selected from the first 30 natural numbers, then the probability that the number selected is divisible by 4 or 7, is

If 4 distinct numbers are chosen randomly from the first 100 natural numbers, then the probability that all 4 of them are either divisible by 3 or divisible by 5 is

If 4 distinct numbers are chosen randomly from the first 100 natural numbers, then the probability that all 4 of them are either divisible by 3 or divisible by 5 is

Find the probability of an odd number selected randomly from first 30 natural numbers.

Two numbers are randomly selected from the first 100 natural numbers. The probability the product is divisible by 17 is