NDA 2022 Mathematics question

What is the probability of getting a composite number in the list of natural numbers from 1 to 50?

Answer: (B)

Solution

The primes up to 50 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, i.e. 15 primes, and 1 is

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Question ID VK-029513