A number is chosen at random from $1$ to $20$. Probability that it is a multiple of $5$ is:

A number is chosen at random from $1$ to $20$. Probability that it is a multiple of $5$ is:
  1. $\dfrac{1}{10}$
  2. $\dfrac{1}{5}$
  3. $\dfrac{1}{4}$
  4. $\dfrac{3}{20}$

Solution

Multiples of $5$ from $1$ to $20$: $\{5,10,15,20\}$. $P = \dfrac{4}{20} = \dfrac{1}{5}$.

Asked in: IMO

Practice more DATA HANDLING questions on Aicharya