Question

Balls are numbered from $1$ to $20$. A ball is drawn at random, what is the probability that the ball drawn is a multiple of $5?$

• A. $\frac{1}{3}$
• B. $\frac{1}{4}$
• C. $\frac{1}{5}$
• D. $\frac{4}{5}$

Answer 1

The correct option is C $\frac{1}{5}$

Total Balls $=20$ (Numbered from $1$ to $20$)

One ball is drawn, having multiple of $5$ are: $E=\{5,10,15,20\}$

Required Probability: $P\left(E\right)=\frac{4}{20}=\frac{1}{5}$