NDA 2025 Mathematics question

In a throw of three dice, what is the probability of getting one prime number, one composite number and one number which is neither prime nor composite?

(A)1/2
(B)1/3
(C)1/4
(D)1/6Correct

Answer: (D)

Solution

On a die the primes are 2, 3, 5 (3 numbers), the composites are 4, 6 (2 numbers) and 1 is neither (1 number). The three types can be assigned to the three dice in

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Question ID VK-030243