Question

A Mathematician randomly selects a number from 1 to 100 to test the validity of a result. What is the probability that the selected number is an odd prime number ?

Answer 1

Number of prime numbers from 1 to 100 = 25

Number of even prime numbers from 1 to 100 = 1

And, number of odd prime numbers = 24

Therefore,

Required probability = $\frac{24}{100}=\frac{6}{25}$