Question

A natural number $k$ is chosen from the set $\left\{\begin{array}{c}1,2,3,....,100\end{array}\right\}$. The probability that it is prime is:

• A. $\frac{1}{4}$
• B. $\frac{1}{5}$
• C. $\frac{19}{100}$
• D. $\frac{23}{100}$

Answer 1

The correct option is A $\frac{1}{4}$

No. of prime numbers $=25$
$P\left(A\right)=\frac{25}{100}=\frac{1}{4}$