From the first 100 natural numbers a number is chosen at random, the probability for it to be a composite number is

From a set of single digit natural numbers, if a number is chosen at random then the probability that the number chosen is a multiple of 2, is

Out of the first 25 natural numbers 2 are chosen at random: The probability for one of the numbers is to be a multiple of 3 and the other to be a multiple of 5.

Out of the first 25 natural numbers two are chosen at random. The probability for one of the numbers to be a multiple of 3 and the other to be a multiple of 5 is

From first twenty natural numbers, 2 numbers are selected at random, the probability that the selected numbers are such that their sum is even is

From first 100 natural numbers five are selected at random. Find the probability that no two of them are consecutive

Out of 3n consecutive natural numbers, 3 natural numbers are chosen at random without replacement. The probability that the sum of the chosen numbers is divisible by 3, is

Out of 40 consecutive natural numbers two numbers are chosen at random .Probability that the sum of numbers is odd is

A natural number is chosen at random from the first 100 natural numbers. What is the probability that the number chosen is a multiple of 2 or 3 or 5?

A natural number is chosen at random from the first 100 natural numbers. What is the probability that the number chosen is a multiple of 2 ro 3 or 5?